The Mines: Difference between revisions

Latest revision as of 10:17, 1 October 2026

The Mines


Closed:	1-4 Spring Year 1
Occupants:	Dwarf

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The Mines are located in the north area of the Mountains (northeast of the Carpenter's Shop and to the west of the Adventurer's Guild). They are blocked by rock debris until the 5th day of Spring (Year 1), when the Player receives a letter from Morris stating that the landslide blocking the entrance to the mine has been removed.

Overview

There are 120 floors (sometimes called levels) in the Mines. Ore type and quantity increases as the Player moves deeper into the Mines. The Mines are filled with rocks and dirt patches. Rocks can be mined with a Pickaxe in order to obtain Stone, ore, and Geodes. A Hoe can be used on dirt patches to collect Minerals, Artifacts, ore, Clay, and Cave Carrots.

To advance deeper in the Mines, a ladder must be revealed on each floor. The ladder will appear after breaking rocks or after defeating an enemy (killing enemies is the stamina-free option to finding ladders). If a floor is "infested" or "overrun" by monsters, all enemies must be defeated on that floor before a ladder will appear. (Note, however, that there is a bug that affects very few floors where a ladder will drop before all enemies are killed.) After the player goes down a level, they will be invulnerable for 1 second.

Passing out in the Mines from exhaustion (zero Energy) or when 2:00 am arrives will result in 10% of gold lost up to a maximum of data-sort-value="1000">1,000g. Passing out from drained Health will result in losing anywhere between 5%-25% of gold (up to a maximum of data-sort-value="15000">15,000g)^[1] and also various inventory items, including Weapons and Tools (except for the Galaxy Sword). If tools are lost, they are returned in the mail on the following day, though Fishing Poles and weapons will not be returned. The player will awaken in the mine entrance, found by one of the villagers.

Lost items can be recovered by contacting Marlon at the Adventurer's Guild. One lost item (or stack of items) can be purchased there, any time after passing out due to low health. The price is the base sell price of the lost item (i.e., the gold that would be obtained from selling one item or stack of items), or 50% discount of it when a player has obtained the power from the Mapping Cave Systems book. Marlon's Item Recovery Service persists until the next time the player loses items in the Mines, when previously lost items are replaced by newly lost items.

A Minecart is located on the entry floor for quick travel to and from the Mines. It is unlocked after completing the Boiler Room Bundles or by purchasing "Minecarts" from the Joja Community Development Form at JojaMart for data-sort-value="15000">15,000g.

The Mines consist of 120 floors (sometimes called levels). These floors are divided into three sections, 40 floors each, with their own themes; the first section has a brown earth theme, the second section has a frozen theme, and the third and last section has a lava and dark purple theme. The last 10 floors of each section has a variation of the main theme; the first section (Floor 31-39) has a shadow theme, the second section (70-79) has a castle theme, and the third and last section (110-119) has a darker crimson theme.

The corresponding floors in each section have the same layout. For example, Floor 5, 45, and 85 have the same layout; as does 19, 59, and 99; or Floor 31, 71, and 111; and so on.

Coal Minecarts refresh their contents at the start of each year.

When the dangerous setting is active in the Mines (either from having the "Danger in the Deep" Quest active or from toggling the Shrine of Challenge on), floor theming, forage, and monsters will be different than the normal Mines. Stacked slimes can appear on any level, and will be colored according to that level's normal slime color.

The entrance to the mine has a ladder leading down to the first floor, an elevator for quickly travelling to previously visited floors which are a multiple of 5, and a Minecart for travel elsewhere.
Players meet Marlon the first time they enter, and he gifts the player a Rusty Sword.
The Dwarf lives through the blocked passage to the east.
(A Steel Pickaxe or any bomb is required to break the obstruction.)

Floor	Regular Theme	Dangerous Theme	Regular Enemies	Dangerous Enemies	Notes
1 - 9	Brown Earth	Blue Earth	Green Slime Duggy Bug Rock Crab	Green Slime (dangerous) Duggy (dangerous) Bug (dangerous) Rock Crab (dangerous)	Copper Ore begins to appear on Floor 2. Gems found: Amethyst, Topaz, Quartz, and Earth Crystal. All gems are found except Diamonds when the Player has reached the bottom of the Mines. In the dangerous mines, beach forage such as Seaweed, Coral, Nautilus Shell, Rainbow Shell, Oyster, Cockle, and Clam spawn. There is a very small chance that a Pearl can spawn. Radioactive Ore begins to appear on any floor that is not a multiple of 5.
11 - 19	Brown Earth, Weeds	Blue Earth, Weeds	Green Slime Duggy Bug Rock Crab Grub Cave Fly	Green Slime (dangerous) Duggy (dangerous) Bug (dangerous) Rock Crab (dangerous) Blue Squid	Floor 12 has a Minecart containing 6 pieces of coal at the end of the path. Guaranteed ladder at the end of the floor, even if the floor is infested. Floor 18 has a Minecart containing 6 pieces of coal at the bottom right of the floor. Floor 19 is set in a spiral pattern.
21 - 29	Brown Earth, Weeds	Blue Earth, Weeds	Green Slime Duggy Bug Rock Crab Grub Cave Fly	Green Slime (dangerous) Duggy (dangerous) Bug (dangerous) Rock Crab (dangerous) Blue Squid	Floor 28 has a Minecart containing 6 pieces of coal at the bottom right of the floor.
31 - 39	Shadow, Grey Earth	Shadow, Black Earth	Bug Bat Stone Golem	Bug (dangerous) Bat (dangerous) Stone Golem (dangerous) Carbon Ghost	Copper Ore, Geodes are common. Floor 38 has a Minecart containing 6 pieces of coal at the top left of the floor.
41 - 49	Frozen Earth	Magic Woods	Frost Jelly Frost Bat Dust Sprite	Blue Slime (dangerous) Frost Bat (dangerous) Dust Sprite (dangerous) Grub (dangerous) Cave Fly (dangerous) Stick Bug	Iron Ore, Frozen Geodes, Aquamarines, and Jade begin to appear. In the regular mines, Frozen Tears begin to appear. In the dangerous mines, Mahogany Trees, Wood, Large Stumps, Large Logs, Weeds, and Grass spawn on the ground alongside forest themed forage like Red Mushroom, Fiddlehead Fern, Morel, Purple Mushroom, and Chanterelle.
51 - 59	Frozen Earth	Magic Woods, Cobwebs	Frost Jelly Frost Bat Dust Sprite Ghost	Frost Bat (dangerous) Dust Sprite (dangerous) Putrid Ghost Spider Stick Bug	Floor 52 has a bag containing 6 pieces of coal at the end of the path. Guaranteed ladder at the end of the floor, even if the floor is infested. Floor 58 has a bag containing 6 pieces of coal at the bottom right of the floor. Floor 59 is set in a spiral pattern. In the regular mines, there are potentially abundant Dust Sprites (which frequently drop Coal). In the dangerous mines, numerous Cobwebs that slow down the player if caught in them. Floors are noticeably darker than 40 - 50 and have a fog effect.
61 - 69	Frozen Earth	Magic Woods, Cobwebs	Frost Jelly Frost Bat Dust Sprite Ghost	Frost Bat (dangerous) Dust Sprite (dangerous) Putrid Ghost Spider Stick Bug	Floor 68 has a bag containing 6 pieces of coal at the bottom right of the floor.
71 - 79	Frozen Castle	Bone Castle	Frost Jelly Frost Bat Dust Sprite Ghost Skeleton	Skeleton Mage Skeleton (dangerous) Haunted Skull (dangerous)	Floor 78 has a bag containing 6 pieces of coal at the top left of the floor. In the dangerous mines, Frozen Tears start to spawn.
81 - 89	Lava, Purple Earth	Mushrooms, Magenta Earth	Red Sludge Lava Bat Lava Crab Shadow Brute Shadow Shaman Metal Head	Red Slime (dangerous) Lava Crab (dangerous) Shadow Brute (dangerous) Shadow Shaman (dangerous) Metal Head (dangerous) Shadow Sniper	Emeralds, Fire Quartz, Gold Ore, Magma Geodes, and Rubies begin to appear. In the dangerous mines, monsters can hide in the grass that spawns here.
91 - 99	Lava, Purple Earth, Weeds	Mushrooms, Magenta Earth, Weeds	Red Sludge Lava Bat Lava Crab Shadow Brute Shadow Shaman Metal Head Squid Kid	Red Slime (dangerous) Lava Crab (dangerous) Shadow Brute (dangerous) Shadow Shaman (dangerous) Metal Head (dangerous) Squid Kid (dangerous) Shadow Sniper	Floor 92 has a Minecart containing 6 pieces of coal at the end of the path. Guaranteed ladder at the end of the floor, even if the floor is infested. Floor 98 has a Minecart containing 6 pieces of coal at the bottom right of the floor. Floor 99 is set in a spiral pattern. In the dangerous mines, traversal of the floors can be difficult due to the numerous weeds and grass that spawns.
101 - 109	Lava, Purple Earth, Weeds	Mushrooms, Magenta Earth, Weeds	Red Sludge Lava Bat Lava Crab Shadow Brute Shadow Shaman Metal Head Squid Kid	Red Slime (dangerous) Lava Crab (dangerous) Shadow Brute (dangerous) Shadow Shaman (dangerous) Metal Head (dangerous) Squid Kid (dangerous) Shadow Sniper	Mystic Stones begin to appear. Floor 108 has a Minecart containing 6 pieces of coal at the bottom right of the floor.
111 - 119	Lava, Crimson Earth	Lava, Maroon Earth	Red Sludge Lava Bat Lava Crab Shadow Brute Shadow Shaman Metal Head Squid Kid	Red Slime (dangerous) Lava Crab (dangerous) Shadow Brute (dangerous) Shadow Shaman (dangerous) Metal Head (dangerous) Squid Kid (dangerous) Shadow Sniper	Magma Geodes are common. Floor 118 has a Minecart containing 6 pieces of coal at the top left of the floor.

Reward Floors

Floors that are a multiple of 10 are a reward floor, with no enemies spawning and usually a single chest with an item in it.
The item can be taken once by each player, and is never reset.

Choosing "remixed" mine rewards in Advanced Options at the start of the game will result in a random reward for each reward floor from the following list. Some floors are unchanged. All floors have the possibility of having their normal reward.

Floor	Reward	Possible Remixed Rewards
10	Leather Boots	Leather Boots Work Boots Wooden Blade Iron Dirk Wind Spire Femur
20	Steel Smallsword	Steel Smallsword Wood Club Elf Blade Glow Ring Magnet Ring
30	No reward	No reward
40	Slingshot	Slingshot
50	Tundra Boots	Tundra Boots Thermal Boots Combat Boots Silver Saber Pirate's Sword
60	Crystal Dagger	Crystal Dagger Cutlass Iron Edge Burglar's Shank Wood Mallet
70	Master Slingshot	Master Slingshot
80	Firewalker Boots	Firewalker Boots Dark Boots Claymore Templar's Blade Kudgel Shadow Dagger
90	Obsidian Edge	Obsidian Edge Tempered Broadsword Wicked Kris Bone Sword Ossified Blade
100	Stardrop	Stardrop
110	Space Boots	Space Boots Crystal Shoes Steel Falchion The Slammer
120	Skull Key	Skull Key

Ladders

Ladders can be dropped from Monsters^[2], Rocks^[3], or spawned on load^[4].

After a floor loads, there is a 95% chance that a ladder will attempt to spawn. A tile is chosen at random, and if it is unobstructed then a ladder is placed. A ladder placed in this way will prevent additional ladders spawning from rocks.

Some floors are preloaded with a ladder (12, 52, 92, Treasure Rooms in the Skull Cavern). These ladders do not prevent ladders spawning from rocks.

Every monster killed has a 15% chance of spawning a ladder, assuming the enemy was killed over an unobstructed tile. An additional 7% is added with the Statue Of The Dwarf King buff that gives greater chance to find ladders, increasing the odds from 15% to 22%.^[2] This does not prevent ladders spawning from rocks.

Every rock destroyed has a chance to spawn a ladder, becoming more likely as there are fewer rocks remaining. If this is successful, a ladder will spawn and prevent further ladders spawning from rocks. (In contrast, in the Skull Cavern, there is a 20% chance that a shaft will spawn instead of a ladder, and this does not prevent further ladders/shafts spawning from rocks.)

Specifically: Every rock destroyed has a base chance of 2% to spawn a ladder. This is adjusted by daily luck, increasing by 2.5% at best (0.5% of which is added by the Special Charm) or decreasing by 2% at worst. It is also adjusted by luck buffs, whether a floor has an enemy, and the Statue Of The Dwarf King buff that gives greater chance to find ladders and shafts. For example, food buffs add 1% for every point of luck. A hypothetical player with max daily luck and +1 luck buff would therefore have a 2 + 2.5 + 1 = 5.5% base chance to spawn a ladder for each rock destroyed. The inverse of the number of rocks remaining (after subtracting the rock that was just destroyed) is added on top of that (e.g., if 5 rocks remaining then 1/5 = 0.2 or 20%, if 100 rocks remaining then 1/100 = 0.01 or 1%). If no enemies remain, another 4% is added. Finally, after accounting for daily luck, luck buffs, and no enemies remaining, the Statue of the Dwarf King buff that gives greater chance to find ladders and shafts applies a 1.25 multiplier to the final odds.^[5]

Crates and Barrels

Containers in the Mines may randomly drop loot when destroyed. Containers are equally likely to be crates or barrels; the possible contents are not affected by the type of container. At most one type of item will be dropped by a crate, although one stack may contain multiple items, unless marked otherwise.

The central platform on floor 19. Only the complete, solid wooden tiles count as a platform, the edges which are only partially wooden tiles do not count.

Most containers respawn every time a floor is entered. However, some floors have wooden platforms, such as the central platform on floor 19. At the start of each year, containers on these platforms are respawned, and if destroyed will not respawn the next time you go into the mines.^[6]

Some items replace others depending on if the player has reached the bottom of the Mines. Where there are two values, the first is before reaching the bottom of the Mines, the second is after. The possible items found in containers and their chances are^[7]:

Item	0-39	40-79	80+ (including Skull Cavern)	Difficult Mines/Skull Cavern (Can drop multiple items)
Nothing	41.42%	41.42%	42%	44%
Stone (2-5)	9.24%	9.24%	5.2%	8%
Wood (2-5)	9.24%	4.62%	5.2%	0%
Hardwood	2.24%	2.24%	1.87%	0%
Sap (2-5)	2.31%/0%	2.31%/0%	0%	2%/0%
Mixed Seeds	4.62%	4.62%	0%	0%
Coal (1-2)	4.62%	4.62%	5.2%	4%
Copper Ore (1-5)	4.62%	4.62%	5.2%	4%
Iron Ore (1-5)	0%	4.62%	5.2%	4%
Gold Ore (1-3)	0%	0%	5.2%	4%
Iridium Ore (1-3)	0%	0%	0%	0.68%
Cave Carrot (1-2)	7.8%	7.8%	7.8%/5.2%	0%
Geode (1-2)	4.84%	0%	0%	0%
Frozen Geode (1-2)	0%	4.84%	0%	0%
Magma Geode (1-2)	0%	0%	2.6%	0%
Omni Geode	0%	0%	1.87%	4%
Amethyst	2.24%	0%	0%	0%
Topaz	2.24%	0%	0%	0%
Aquamarine	0%	2.24%	0%	4%
Jade	0%	2.24%	0%	4%
Emerald	0%	0%	1.87%	0%
Ruby	0%	0%	1.87%	0%
Bone Fragment (2-5)	0%	0%	5.2%	0%
Warp Totem: Farm	0%	0%	1.87%	0%
Quartz	0%/4.62%	0%	0%	4%
Frozen Tear	0%	0%/4.62%	0%	0%/4%
Fire Quartz	0%	0%	0%/2.6%	0%
Basic Retaining Soil (2-3)	2.31%/0%	0%	0%	2%/0%
Quality Retaining Soil (2-3)	0%	2.31%/0%	0%	0%
Deluxe Retaining Soil	0%	0%	0%	0.23%
Hyper Speed-Gro	0%	0%	0%	0.23%
Deluxe Fertilizer	0%	0%	0%	0.23%
Cherry Bomb	0%	0%	0%	4%
Bomb	0%	0%	0%	4%
Tom Kha Soup	0%	0%	0%	0.15%
Trout Soup	0%	0%	0%	0.15%
Chocolate Cake	0%	0%	0%	0.15%
Pink Cake	0%	0%	0%	0.15%
Rhubarb Pie	0%	0%	0%	0.15%
Cookie	0%	0%	0%	0.15%
Spaghetti	0%	0%	0%	0.15%
Fried Eel	0%	0%	0%	0.15%
Spicy Eel	0%	0%	0%	0.15%
Sashimi	0%	0%	0%	0.15%
Maki Roll	0%	0%	0%	0.15%
Tortilla	0%	0%	0%	0.15%
Red Plate	0%	0%	0%	0.15%
Eggplant Parmesan	0%	0%	0%	0.15%
Rice Pudding	0%	0%	0%	0.15%
Ice Cream	0%	0%	0%	0.15%
Blueberry Tart	0%	0%	0%	0.15%
Autumn's Bounty	0%	0%	0%	0.15%
Pumpkin Soup	0%	0%	0%	0.15%
Super Meal	0%	0%	0%	0.15%
Cranberry Sauce	0%	0%	0%	0.15%
Stuffing	0%	0%	0%	0.15%
Farmer's Lunch	0%	0%	0%	0.15%
Survival Burger	0%	0%	0%	0.15%
Dish O' The Sea	0%	0%	0%	0.15%
Miner's Treat	0%	0%	0%	0.15%
Roots Platter	0%	0%	0%	0.15%
Qi Gem	0%	0%	0%	0.54%
Trimmed Lucky Purple Shorts	0%	0%	0%	0.68%
Special Item (See below)	2.24%	2.24%	1.87%	0%
Seasonal raccoon seed (2-4)	2%	2%	2%	2%
Trinket Independent drop. All trinkets that can be dropped have an equal chance of being chosen^[8].	scales with mine level	scales with mine level	scales with mine level	scales with mine level
Mystery Box Independent drop. Chance is adjusted by daily luck, and increases if the player has read the Book of Mysteries. If the player has achieved Foraging Mastery, then a Golden Mystery Box will be dropped instead.	0.53%	0.53%	0.53%	0.53%
Rare object (See below)	varies	varies	varies	varies

Special Items

A small fraction of crates and barrels (2.2%) will drop one of the following special items^[9]. Visually these crates and barrels are indistinguishable from containers containing standard loot.

These special items can also be dropped by a small fraction of monsters. About 1.2% of Slimes are identifiable as Special Slimes by gold stars. For all other monsters, about 0.175% of monsters will drop special items instead of standard loot, but these special monsters look identical to the standard versions.

Floor	Items
Mines: 0-19	Carving Knife (17%) Wood Club (17%) Sneakers (17%) Rubber Boots (17%) Small Glow Ring (17%) Small Magnet Ring (17%)
Mines: 20-39	Forest Sword (14%) Wind Spire (14%) Wood Club (14%) Rubber Boots (14%) Sneakers (14%) Small Glow Ring (14%) Small Magnet Ring (14%)
Mines: 40-59	Forest Sword (14%) Iron Edge (14%) Lead Rod (14%) Wood Mallet (14%) Thermal Boots (14%) Glow Ring (14%) Magnet Ring (14%)

Floor	Items
Mines: 60-79	Lead Rod (14%) Shadow Dagger (14%) Wood Mallet (14%) Combat Boots (14%) Thermal Boots (14%) Glow Ring (14%) Magnet Ring (14%)
Mines: 80-99	Yeti Tooth (25%) Burglar's Shank (13%) Tempered Broadsword (13%) The Slammer (13%) Holy Blade (13%) Dark Boots (13%) Genie Shoes (13%)
Mines: 100-119	Burglar's Shank (13%) Kudgel (13%) Shadow Dagger (13%) Steel Falchion (13%) Holy Blade (13%) Dark Boots (13%) Genie Shoes (13%) Immunity Band (13%)

Floor	Items
Skull Cavern Quarry Mine	Burglar's Shank (8%) Steel Falchion (8%) Tempered Broadsword (8%) The Slammer (8%) Wicked Kris (8%) Crystal Shoes (8%) Dark Boots (8%) Genie Shoes (8%) Immunity Band (8%) Lucky Ring (8%) Battery Pack (8%) Curiosity Lure (8%)
Any floor (Shrine of Challenge active) Note: This applies to monsters only, not crates & barrels	Iridium Needle (14%) Iridium Band (14%) Enricher (14%) Pressure Nozzle (14%) Radioactive Bar (14%) Qi Gem (14%) Auto-Petter (2%)A random item from a Treasure Room (14%)

Rare Objects

All crates and barrels have a very small chance to spawn one or more rare objects^[10]. Visually these crates and barrels are indistinguishable from containers containing standard loot. The mine level does not affect these drops.

These drop categories are not mutually exclusive. That is, each category below is checked individually, and multiple drops may be spawned from one crate or barrel.

Dirt Patches

The following table lists the chances of finding items available from dirt patches^[11]. It doesn't matter if a hoe or a bomb is used to dig the soil.

Item	Chance
Nothing	85.9%
Cave Carrot	5.03%
Clay	4.68%
Stone	1.33%
Lost Book / Mixed Seeds	0.16%
Dwarf Scroll I	0.16%
Rusty Spoon	0.16%
Rusty Cog	0.16%
Skeletal Tail	0.16%
Dwarvish Helm (floors 1-39)	0.1%
Dwarf Scroll II (floors 1-39)	0.1%
Dwarf Gadget (floors 40-79)	0.1%
Gold Bar (floors 40-79)	0.1%
Dwarf Scroll IV (floors 80-120)	0.2%
Strange Doll (yellow)	0.03%
Strange Doll (green)	0.03%
Omni Geode	0.17%
Ore (floor-appropriate)	1.33%
Geode (floor-appropriate)	0.51%

Infested Floors

Occasionally the player will enter an infested floor filled with slimes or a mix of monsters. Unlike normal floors, there are no rocks and in slime-infested floors, the walls and ground are covered in green slime rather than the normal themes. Forageable items such as Quartz or Mushrooms can still be found.

To proceed from an infested floor, all monsters must be killed (this includes Duggies that may be hidden under dirt patches). Note that a bug causes the guaranteed ladder on floors 12, 52, and 92 to still appear once the floor loads even if said floor is infested. Once all monsters are killed, a ladder will appear either where the last monster was killed or next to the entrance. If it appears next to the entrance, the player will be notified with a message saying, "A way down has appeared". If it appears where the last monster was killed and the player does not enter the ladder immediately, after some time it is possible for a second ladder to appear near the entrance and a message notifying the player "A way down has appeared".

A Staircase can also be used to skip an infested floor.

The Oil of Garlic Buff prevents floors from being infested. Oil of Garlic must be consumed before entering the floor to prevent infestation.

In rare cases, there may be no monsters on an infested floor. In this case, a ladder will appear next to the entrance shortly after entering the floor, along with the message "A way down has appeared".

There is no pattern for when infested floors appear, but infested floors will remain infested for the entire day. Infested floors cannot spawn on elevator floors (floors ending in 0 or 5), nor can they spawn on the first 5 floors, the 19th floor, or the last 10 floors of each section of the Mines.^[12] This includes floors 1-4, 41-44, 81-84 (the first 5 floors), floors 19, 59, 99 (the 19th floor), and floors 31-39, 71-79, 111-119 (the last 10 floors), as well as Skull Cavern floors using the same layout as these floors.

With these spawning rules in mind, infested floors can spawn on the following floors of the Mines: 6-9, 11-14, 16-18, 21-24, 26-29, 46-49, 51-54, 56-58, 61-64, 66-69, 86-89, 91-94, 96-98, 101-104, 106-109.

Repeatedly visiting infested floors can be an excellent way to quickly achieve some of the Monster Eradication Goals at the Adventurer's Guild.

Swarms

There are two different types of swarms that can occur if the player is not on a Mine level that is divisible by 5.

Single spawn: Every ten minutes, there is an 8.9% chance for one of the current floor's flying monsters to spawn off screen and attack. On infested floors and in the Quarry Mine, the chance increases to 10%. The Oil of Garlic Buff prevents these spawns from occurring.^[13]

Swarm: Every ten minutes, if the player is not on an infested floor and is not in the Quarry Mine, there is a 1.1% chance for the screen to become "misty", "glowy", or "foggy". This effect lasts 30-40 seconds. During this time, several of the current floor's flying monsters will spawn and attack. The Oil of Garlic Buff prevents these infestation fogs from occurring.^[13]

The Mushroom Floor

Any floor in the lowest section of the Mines (floors 81-119), excluding elevator floors, has a 3.5% chance of generating as a mushroom floor, provided the same floor hasn't been generated as a mushroom floor before on the same day.^[14]

Mushroom floors will have greatly increased spawns of red and purple mushrooms and a greatly reduced amount of rocks, including ore nodes. These floors will also have a variety of colored lanterns which usually includes at least one green lantern.

The mushroom floor will only spawn the first time a player visits the floor and will disappear immediately after leaving it.

Dungeon Floors

Dungeon floors are a type of floor similar in appearance to the single floor of the Quarry Mine. Any eligible floor in the Mines has a 4.4% chance of generating as a dungeon floor after the Quarry Mine has been entered.^[12] These floors have the same enemies and rocks as the Quarry Mine and can often be considerably harder than those of the floors they replace. Dungeon floors are never infested.^[12]

In the Dangerous Mines, dungeon floors can spawn as long as the player has entered the Quarry Mine. Dangerous dungeon floors spawn Dangerous Slimes instead of Copper and Iron Slimes, and the slimes are the color corresponding to that section of the Dangerous Mines. Dangerous Haunted Skulls spawn instead of Haunted Skulls, just like on floors 71-79 of the Dangerous Mines. While rocks mainly spawn the same as for the Quarry Mine, there is also a chance for Radioactive Nodes to spawn on these floors.

As with infested floors, dungeon floors will remain as dungeon floors for the entire day, and cannot spawn on elevator floors or the first floor. However, unlike infested floors, dungeon floors can spawn on floors 2-4, 19, and 31-39, 42-44, 59, and 71-79, 82-84, 99, and 111-119 (excluding floors 35, 75, and 115, as they are elevator floors).

Players without high-level tools or weapons might benefit from using a Staircase to skip these floors to save time.

The Bottom of the Mines

On floor 120 of the Mines is the Skull Key. The skull key is used to open a door in a cave in the Desert, leading to the Skull Cavern. It is also used to unlock the Junimo Kart arcade machine for play in the Stardrop Saloon.

Furthermore, reaching this floor also changes other parts of the game:

Prismatic Shards and Diamonds can now rarely drop from any monster;
Most monsters will be stronger.^[15] Specifically:
- Defense will be increased by 50%.
- Chance of missing a hit (i.e., doing no damage with a hit) will be doubled.
- HP will be increased by a random value between 0 and 100%.
- Damage will be increased by a random value between 0 and 50%.
Twenty different 'alternate' mine floor layouts can start appearing.

These changes are permanent, and will not reset even if the "Danger In The Deep" quest is active (which resets the mine elevator).

Shrine of Challenge

The Shrine of Challenge is unlocked after unlocking Qi's Walnut Room and completing the "Danger In The Deep" quest. It is located on floor 120 of the Mines and acts as a toggle switch, alternating the strengths of enemies between normal variants and "dangerous" variants. The toggle does not change monster variants until the following day.

While the dangerous setting is active, Radioactive Nodes can be found in the Mines, from which Radioactive Ores can be obtained.

On the day the player first completes the "Danger In The Deep" quest, a note from Mr. Qi can be found on the shrine saying he has temporarily disabled the shrine and the player can come back tomorrow.

Difficulty Levels

The mines can be made dangerous in one of two ways. One is through the "Danger In The Deep" quest, and the other is using the Shrine of Challenge (above). These two effects can stack. If neither of these are active, the difficulty level is 0. If only one is active, then the difficulty level is 1. If both are active, the difficulty level is 2.

While this mainly acts as a toggle between the normal Mines (difficulty 0) and the "dangerous" Mines (difficulty > 0), there are some effects which stack. This includes the following:

Chance to find Radioactive Ore increased by 0.1% per difficulty level; ^[16]
Chance of a Monster spawning increased by 2% per difficulty level; ^[17]
Chance for Slimes to spawn as stacked slimes increased by 10% per difficulty level; ^[18]
Chance for Spiders to have partners (making more spiders spawn) increased with each difficulty level; ^[19]
Chance for defeated monsters to drop Diamonds and Prismatic Shards increased by 0.1% per difficulty level; ^[20]
Monster resilience (their resistance to damage) increased by base value times difficulty level for most monster types (i.e., monsters at difficulty level 2 will have 3x their base resilience); ^[21]
Monster health increased with difficulty level according to a linear interpolation function; ^[22]
Monster damage increased with difficulty level according to a linear interpolation function. ^[23]

Shadow Snipers, Putrid Ghosts, and Spiders are also affected differently by difficulty levels. ^[24]

Strategy

Staircases

If the Player has reached at least Mining skill level 2, floors can be skipped by using Staircases (crafted from 99 Stone). A staircase allows instant access to the next floor in the Mines. After every 5 floors, an elevator will be available, allowing access to that floor at any time.

Food

Shown below are foods with Buffs that are useful when exploring the Skull Cavern. Note that eating a food with buffs will wipe out any active buffs and replace them with the buffs from the newly eaten food. If the newly eaten food has no buffs, the existing buffs will remain in effect. Coffee, Triple Shot Espresso and Ginger Ale are an exception to this rule; they will stack with other food Buffs (but not each other).

Name	Ingredients	Energy / Health	Buff(s)	Duration
Autumn's Bounty	Yam (1) Pumpkin (1)	22099	Foraging (+2) Defense (+2)	7m 41s
Coffee	Coffee Bean (5)	31	Speed (+1)	1m 23s
Crab Cakes	Crab (1) Wheat Flour (1) Egg (1) Oil (1)	225101	Speed (+1) Defense (+1)	16m 47s
Cranberry Sauce	Cranberries (1) Sugar (1)	12556	Mining (+2)	3m 30s
Eggplant Parmesan	Eggplant (1) Tomato (1)	17578	Mining (+1) Defense (+3)	4m 39s
Fried Eel	Eel (1) Oil (1)	7533	Luck (+1)	7m
Fried Mushroom	Common Mushroom (1) Morel (1) Oil (1)	13560	Attack (+2)	7m
Ginger Ale	Ginger (3) Sugar (1)	6328	Luck (+1)	5m
Lucky Lunch	Sea Cucumber (1) Tortilla (1) Blue Jazz (1)	10045	Luck (+3)	11m 11s
Magic Rock Candy	N/A	500225	Mining (+2) Luck (+5) Speed (+1) Defense (+5) Attack (+5)	8m 24s
Maple Bar	Maple Syrup (1) Sugar (1) Wheat Flour (1)	225101	Farming (+1) Fishing (+1) Mining (+1)	16m 47s
Miner's Treat	Cave Carrot (2) Sugar (1) Milk (1)	12556	Mining (+3) Magnetism (+32)	5m 35s
Pepper Poppers	Hot Pepper (1) Cheese (1)	13058	Speed (+1) Farming (+2)	7m
Pumpkin Soup	Pumpkin (1) Milk (1)	20090	Luck (+2) Defense (+2)	7m 41s
Roots Platter	Cave Carrot (1) Winter Root (1)	12556	Attack (+3)	5m 35s
Spicy Eel	Eel (1) Hot Pepper (1)	11551	Luck (+1) Speed (+1)	7m
Stuffing	Bread (1) Cranberries (1) Hazelnut (1)	17076	Defense (+2)	5m 35s
Super Meal	Bok Choy (1) Cranberries (1) Artichoke (1)	16072	Speed (+1) Max Energy (+40)	3m 30s
Triple Shot Espresso	Coffee (3)	83	Speed (+1)	4m 12s

Bugs

An infested floor on floors 12, 52, or 92 at the Mines (floors preloaded with a ladder) will still have the ladder preloaded. This makes it possible to descend from that floor without killing all of the enemies or using a staircase. Killing all of the enemies on the floor will result in a second ladder spawning.

Trivia

The axe, scythe, or pickaxe can be used to kill monsters in lieu of a weapon.
Stone can be purchased from the Carpenter's Shop for data-sort-value="20">20g each during Year 1, making it possible to skip all 120 floors using Staircases for just under data-sort-value="225000">225,000g (useful for unlocking all the floors in order to return later).
- Starting in Year 2, the price of stone increases to data-sort-value="100">100g, making this a much more expensive technique (data-sort-value="1125000">1,125,000g).
- Monsters become more difficult to kill with increased damage after reaching the bottom of the Mines,^[15] so this technique is not without penalties.
If all monsters on a floor are killed, the chance of finding a ladder under a broken rock is increased by 4%.^[5]
At floor 120, both the Green Serpent Statue and the Purple Serpent Statue are found.

Gallery

The entrance to the Mines
The blocked Mine Entrance before Day 5 of Spring
A minecart containing 6 pieces of coal

External Links

Players with access to their saved game files may find the "Stardew Predictor" utility helpful for predicting which mine floors will be infested and which floors will be mushroom floors. The utility is located at https://mouseypounds.github.io/stardew-predictor/.

References

↑ See Event::command_minedeath in the game code.
↑ ^2.0 ^2.1 See MineShaft::monsterDrop in the game code.
↑ See MineShaft::checkStoneForItems in the game code.
↑ See MineShaft::populateLevel in the game code.
↑ ^5.0 ^5.1 See MineShaft::checkStoneForItems in the game code.
↑ See MineShaft::yearUpdate in the game code.
↑ See BreakableContainer::releaseContents in the game code.
↑ See Trinket::GetRandomTrinket in the game code.
↑ See MineShaft::getSpecialItemForThisMineLevel in the game code.
↑ See Utility::trySpawnRareObject in the game code.
↑ See MineShaft::checkForBuriedItem in the game code.
↑ ^12.0 ^12.1 ^12.2 See MineShaft::loadLevel in the game code.
↑ ^13.0 ^13.1 See MineShaft::performTenMinuteUpdate in the game code.
↑ See MineShaft::chooseLevelType in the game code.
↑ ^15.0 ^15.1 See Monster::parseMonsterInfo in the game code.
↑ See Locations.MineShaft.createLitterObject in the game code.
↑ See Locations.MineShaft.adjustLevelChances in the game code.
↑ See Locations.MineShaft.populateLevel in the game code.
↑ See Locations.MineShaft.populateLevel in the game code, where the Leaper object refers to spiders. At difficulty level 1, when a spider is spawned, each of its four cardinally adjacent tiles has a 60% chance to spawn a "partner" spider. (These are identical to other spiders, but do not trigger additional partner spawns.) At difficulty level 2, the chance is changed to 90%. These chances are independent, meaning that it is possible for a spider to have up to four partners, one for each of its cardinally adjacent tiles. Assuming the tiles are clear, there are on average 2.4 partners spawned at difficulty level 1, and 3.6 for difficulty level 2.
↑ See Monsters.Monster.InitializeForLocation in the game code.
↑ See Monsters.Monster.BuffForAdditionalDifficulty resilience calculations in the game code. Note that Shadow Snipers, Putrid Ghosts, and Spiders have a base difficulty of 1 rather than 0, so their resilience is base at difficulty level 1 and doubled at difficulty level 2.
↑ See Monsters.Monster.BuffForAdditionalDifficulty MaxHealth calculations in the game code.
↑ See Monsters.Monster.BuffForAdditionalDifficulty DamageToFarmer calculations in the game code.
↑ Since Shadow Snipers, Putrid Ghosts, and Spiders have a base difficulty of 1 instead of the typical value of 0, their stats remain at base value when the mine is at difficulty level 1. They are only buffed when the mine is at difficulty level 2. Shadow Snipers and Putrid Ghosts are also not acknowledged as Dangerous Monsters until difficulty level 2. This means that at difficulty level 1, they cannot drop Galaxy Souls or Qi Gems and do not count towards the 50 Dangerous Monsters needed for Galaxy Souls to be sold at the Island Trader or dropped by monsters other than Big Slimes.

History

1.3.27: Removed exploit that created a ladder to the Skull Cavern on floor 120 by blowing up an item with a bomb. Added several changes that happen after reaching the bottom of the Mines, specifically rare prismatic shard/diamond now rarely drop from any monster, gems/purple mushrooms are now found in garbage cans and can be requested by NPC quests, and some monsters becoming stronger.
1.4: Added random dungeon (quarry mine) floors. Changed the way mushroom floors are spawned, so they cannot be repeatedly "farmed". Removed exploit where clicking the journal icon would prevent the passing out (from low health) cutscene where items and gold were lost. Mine floors are no longer forgotten when passing out due to low health. Added Marlon's Item Recovery Service. Mine floors now also reset as soon as the player returns to floor 0, instead of only the next 10-minute tick of the game clock when on a lower numbered floor.
1.5: In the Advanced Options when starting a farm, there is an option for Mine Rewards to be Default or Remixed. Added the Shrine of Challenge to floor 120 after completing Qi quest.
1.5.5: Fixed issue where the harder Mines could be permanently enabled and be unable to change back.
1.6: Added a Gold Slime that drops gold when killed. Raised maximum Death Penalty from data-sort-value="5000">5,000g to data-sort-value="15000">15,000g.
1.6.4: Added 20 new 'alternate' mine layouts (excluding the Quarry mine layout), which can start appearing after reaching the bottom of the Mines. Going down a level in the mines now makes the player invulnerable for 1 second. Players can no longer gain Calico Egg Rating in the normal mines. Mine barrels, coal carts, and Floors 45 and 85 will now "refresh" at the start of each year.
1.6.5: Fixed crash when loading dark mine levels in some cases.
1.6.6: “Minecart depot” alternative layout now only appears in the upper (Floors 1-39) or lava (Floors 81-119) mine areas.

Locations
Locations	Backwoods • Beach • Bus Stop • Calico Desert • Cindersap Forest • Farm • Farm Cave • Farm Pond • Graveyard • Ginger Island • Mastery Cave • Minecart • Mines • Mountain • Mutant Bug Lair • Pelican Town • Quarry • Quarry Mine • Railroad • Secret Woods • Sewers • Skull Cavern • Summit • Tunnel • Volcano Dungeon • Witch's Swamp

[minedeath-1] See Event::command_minedeath in the game code.

[laddermonsters-2] 2.0 ^2.1 See MineShaft::monsterDrop in the game code.

[ladderrocks-3] See MineShaft::checkStoneForItems in the game code.

[ladderload-4] See MineShaft::populateLevel in the game code.

[ladderchance-5] 5.0 ^5.1 See MineShaft::checkStoneForItems in the game code.

[refresh-6] See MineShaft::yearUpdate in the game code.

[barreldrop-7] See BreakableContainer::releaseContents in the game code.

[trinket-8] See Trinket::GetRandomTrinket in the game code.

[specialitem-9] See MineShaft::getSpecialItemForThisMineLevel in the game code.

[rareobject-10] See Utility::trySpawnRareObject in the game code.

[itemdigchances-11] See MineShaft::checkForBuriedItem in the game code.

[loadlevel-12] 12.0 ^12.1 ^12.2 See MineShaft::loadLevel in the game code.

[swarms-13] 13.0 ^13.1 See MineShaft::performTenMinuteUpdate in the game code.

[mushfloor-14] See MineShaft::chooseLevelType in the game code.

[buffedmonsters-15] 15.0 ^15.1 See Monster::parseMonsterInfo in the game code.

[radioactiveDifficulty-16] See Locations.MineShaft.createLitterObject in the game code.

[monsterSpawnDifficulty-17] See Locations.MineShaft.adjustLevelChances in the game code.

[slimeStacksDifficulty-18] See Locations.MineShaft.populateLevel in the game code.

[spiderDifficulty-19] See Locations.MineShaft.populateLevel in the game code, where the Leaper object refers to spiders. At difficulty level 1, when a spider is spawned, each of its four cardinally adjacent tiles has a 60% chance to spawn a "partner" spider. (These are identical to other spiders, but do not trigger additional partner spawns.) At difficulty level 2, the chance is changed to 90%. These chances are independent, meaning that it is possible for a spider to have up to four partners, one for each of its cardinally adjacent tiles. Assuming the tiles are clear, there are on average 2.4 partners spawned at difficulty level 1, and 3.6 for difficulty level 2.

[rareDropsDifficulty-20] See Monsters.Monster.InitializeForLocation in the game code.

[resilienceDifficulty-21] See Monsters.Monster.BuffForAdditionalDifficulty resilience calculations in the game code. Note that Shadow Snipers, Putrid Ghosts, and Spiders have a base difficulty of 1 rather than 0, so their resilience is base at difficulty level 1 and doubled at difficulty level 2.

[healthDifficulty-22] See Monsters.Monster.BuffForAdditionalDifficulty MaxHealth calculations in the game code.

[damageDifficulty-23] See Monsters.Monster.BuffForAdditionalDifficulty DamageToFarmer calculations in the game code.

[exceptionsDifficulty-24] Since Shadow Snipers, Putrid Ghosts, and Spiders have a base difficulty of 1 instead of the typical value of 0, their stats remain at base value when the mine is at difficulty level 1. They are only buffed when the mine is at difficulty level 2. Shadow Snipers and Putrid Ghosts are also not acknowledged as Dangerous Monsters until difficulty level 2. This means that at difficulty level 1, they cannot drop Galaxy Souls or Qi Gems and do not count towards the 50 Dangerous Monsters needed for Galaxy Souls to be sold at the Island Trader or dropped by monsters other than Big Slimes.

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[16]

[17]

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[19]

[20]

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[23]

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