ontrigger-ItemStatsMod icon


Calculates and shows stack bonuses in the item tooltip. Now with BepIn support!

Last updated 2 years ago
Total downloads 777287
Total rating 191 
Categories Mods Client-side
Dependency string ontrigger-ItemStatsMod-2.2.1
Dependants 180 other mods depend on this mod

This mod requires the following mods to function

bbepis-BepInExPack-5.3.1 icon

Unified BepInEx all-in-one modding pack - plugin framework, detour library

Preferred version: 5.3.1
tristanmcpherson-R2API-2.5.14 icon

A modding API for Risk of Rain 2

Preferred version: 2.5.14


ItemStats 2.2.1

Provides current stack bonuses for an item in the tooltip



First thing you'll need is the BepInExPack. If you don't have it, get it here and follow the installation instructions.

Afterwards, get the zip file from releases and extract the ItemStats folder in BepInEx/plugins. That's it!

Custom Item API

In order to use API, add a Bepin SoftDependency to your BaseUnityPlugin annotations. Make sure to check if ItemStats is loaded before trying to use it

Then, create an ItemStatDef for your item (see ItemStatDefinitions.cs for examples).

Use the R2API ItemApi Submodule to add your item and get its ItemIndex.

After that, simply call ItemStatsMod.AddCustomItemStatDef(myItemIndex, myItemStatDef)

To create an item stat modifier, extend from AbstractStatModifier. Check ItemStats.StatModification.Modifiers for examples Add an instance of the class with ItemStatsMod.AddStatModifier(new MyStatModifier())


You will first need the following libraries:

  • Assembly-CSharp (duh)
  • UnityEngine
  • UnityEngine.CoreModule
  • BepInEx
  • MMHOOK_Assembly-CSharp
  • R2API

Open the solution, link the libraries in the Lib folder, DL the required NuGet package and compile.


  • kylewill0725
  • orare
  • XuaTheGrate

Available versions

Please note that the install buttons only work if you have compatible client software installed, such as the Thunderstore Mod Manager. Otherwise use the zip download links instead.

Upload date Version number Downloads Download link  
2021-3-27 2.2.1 373694 Version 2.2.1 Install
2021-3-27 2.2.0 7663 Version 2.2.0 Install
2020-10-26 2.1.0 140262 Version 2.1.0 Install
2020-9-10 2.0.0 63173 Version 2.0.0 Install
2020-4-1 1.5.0 99025 Version 1.5.0 Install
2019-12-30 1.4.0 29027 Version 1.4.0 Install
2019-10-13 1.3.1 14879 Version 1.3.1 Install