Modding:Objects

← Items

This page explains how the game stores and parses item data. This is an advanced guide for mod developers.

Objects

Objects are the default type for items in inventories or placed in the world.

They have their data in Data/Objects (Data/ObjectInformation prior to 1.6), their icon sprites in Maps/springobjects, and their code in StardewValley.Object. See a table of sprites and their corresponding indexes.

Data format

The object data in Data/Objects consists of a string → model lookup, where...

• The key is the unqualified item ID.
• The value is a model with the fields listed below.

Basic info

field	purpose
Name	The internal item name.
DisplayName Description	A tokenizable string for the item's in-game display name and description.
Type	The item's general type, like Arch (artifact) or Minerals. The vanilla types are: Litter, Basic, Minerals, Quest, asdf, Crafting, Arch, fish, Cooking, Seeds, Ring, interactive
Category	The item category.
Price	(Optional) The price when sold by the player. This is not the price when bought from a shop. Default 0.

Appearance

field	purpose
Texture	The asset name for the texture containing the item's sprite. Defaults to Maps/springobjects.
SpriteIndex	The sprite's index within the Texture, where 0 is the top-left sprite.

Edibility

field	purpose
Edibility	(Optional) A numeric value that determines how much energy (edibility × 2.5) and health (edibility × 1.125) is restored when this item is eaten. An item with an edibility of -300 can't be eaten, values from -299 to -1 reduce health and energy, and zero can be eaten but doesn't change health/energy. Default -300.
IsDrink	(Optional) Whether to drink the item instead of eating it. Default false.
Buffs	(Optional) The buffs to apply to the player when this item is eaten, if any. Default none. This consists of a list of models with these fields: field purpose Id The unique string ID for this entry within the list. Duration (Optional if BuffId is set) The buff duration measured in in-game minutes. This can be set to -2 for a buff that should last for the rest of the day. BuffId (Optional) The unique ID of a buff from Data/Buffs to apply, or null to ignore Data/Buffs and set the ID to food or drink depending on the item's IsDrink field. If a buff from Data/Buffs is applied and you also specify other fields, here's how the buff data is combined: field result Duration IconTexture SpriteIndex GlowColor If specified, the value in Data/Objects is used instead of the one in Data/Buffs. If omitted, defaults to the value from Data/Buffs. CustomAttributes The values from both entries are combined (e.g. +1 speed in Data/Objects and +1 speed in Data/Buffs results in +2 speed). IsDebuff The value in Data/Objects is used. IsDebuff (Optional) Whether this buff counts as a debuff, so its duration should be halved when wearing a Sturdy Ring. Default false. IconTexture (Optional) The asset name for the icon texture to load. This must contain one or more 16x16 icons in a grid of any size. If omitted, the game will draw a default icon based on the BuffId and CustomAttributes fields. SpriteIndex (Optional) The buff's icon index within the IconTexture, where 0 is the top-left icon. Default 0. GlowColor (Optional) The glow color to apply to the player. See color format. Default none. CustomAttributes The custom buff attributes to apply, if any. This consists of a model with any combination of these fields: field purpose FarmingLevel FishingLevel ForagingLevel LuckLevel MiningLevel (Optional) An amount applied to the matching skill level while the buff is active. This can be negative for a debuff. Default 0. Attack Defense MagneticRadius MaxStamina Speed (Optional) An amount applied to the player's attack, defense, magnetic radius, maximum stamina, or speed while the buff is active. This can be negative for a debuff. Default 0. CustomFields (Optional) The custom fields for this entry.

Geodes & artifact spots

field	purpose
GeodeDrops GeodeDropsDefaultItems	(Optional) The items that can be dropped when breaking open this item as a geode. Specifying either or both fields automatically enables geode behavior for this item. You can specify one or both fields: GeodeDrops can be set to the specific items to drop. Default none. This consists of a list of models with these fields: field purpose common fields See item spawn fields for the generic item fields supported by geode drops. If set to an item query which returns multiple items, one of them will be selected at random. Chance (Optional) The probability that the item will be dropped if the other fields match, as a decimal value between 0 (never) and 1 (always). Default 1. SetFlagOnPickup (Optional) The mail flag to set for the current player when this drop is picked up. Precedence (Optional) The order in which this entry should be checked, where lower values are checked first. This can be a negative value. Geode drops with the same precedence are checked in the order listed. Default 0. For consistency, vanilla drops mostly use these values: -1000: special overrides like the golden helmet; 0: normal items. GeodeDropsDefaultItems chooses a predefined list of possible geode drops like clay, coal, copper, iridium, etc. Default false. If both fields are specified, each geode will choose between them with an equal 50% chance. If GeodeDrops is specified but no entries match, the geode will use the GeodeDropsDefaultItems regardless of whether it's true.
ArtifactSpotChances	(Optional) If this is an artifact (i.e. the Type field is Arch), the chance that it can be found by digging artifact spots in each location. This consists of a string → model lookup, where: the key is the internal location name; the value is the probability the item will spawn if checked, as a decimal value between 0 (never) and 1 (always).

Context tags & exclusions

field	purpose
ContextTags	(Optional) The custom context tags to add for this item (in addition to the tags added automatically based on the other object data). This is formatted as a list; for example: "ContextTags": [ "color_yellow", "fish_ocean", "fish_upright", "season_summer" ]
CanBeGivenAsGift	(Optional) Whether this item can be gifted to NPCs. Default true.
CanBeTrashed	(Optional) Whether this item can be trashed from the player's inventory. Default true.
ExcludeFromRandomSale	(Optional) Whether to exclude this item from shops when selecting random items to sell. Default false.
ExcludeFromFishingCollection ExcludeFromShippingCollection	(Optional) Whether to exclude this item from the fishing/shipping collection and their respective effect on the perfection score. Default false, in which case the normal requirements apply (e.g. artifacts are always excluded from the shipping collection).

Advanced

field	purpose
CustomFields	(Optional) The custom fields for this entry.

Notes

• Prior to 1.6, items that have a number in index 6 (the "Crafting" field) showed buggy information in-game (e.g., Bean Hotpot prior to version 1.4). Items that had a number in the "Attack" field displayed the Attack icon and a number, but no description. It's unclear how these buffs work (if at all).
• Adding custom items with the Arch type is inadvisable as it often leads to Artifact Spots becoming broken and not giving any items.
• Named buffs (like Oil of Garlic, Life Elixir, or Tipsy) are implemented in code and can't be set in the food buff fields.
• The spritesheet and data have items that can't normally be found in the player inventory (like twigs and lumber), and some sprites have no corresponding item data. There are also multiple entries for weeds and stone corresponding to different sprites, but the player can only normally obtain one stone item (index 390) and no weeds items.

See also

• Modding:Index for related content like crops, fish, gift tastes, and recipes

History

• 1.6: Objects are now stored in Data/Objects rather than Data/ObjectInformation and have a new format.
• 1.6: Field 4 of hats is now used for tags, rather than displayName.
• 1.6: Display name field is now used for all languages.
• 1.6: Added Texture & texture index fields to all object data.
• 1.6: All types of items now use string IDs.