Jotunn the Valheim Library

⭐ ⭐⭐⭐ (12,080 endorsements) 📥 803,597 downloads 📌 v2.29.0 📅 4/30/2021
🟡 Updated this year

By Valheim Modding · Utilities

⬇ Download Mod Source: Nexus Mods 📅 Updated: 7/13/2026 📅 Created: 4/30/2021
⚠️ Install Order · 1 step
1🛠️ BepInEx — BepInEx framework Download ↗

Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.

🔍 Analysis

  • 👍 1.5% endorsement rate — high engagement, a strong quality signal
  • 🏆 #1 of 251 Utilities mods in this game by downloads

📋 About This Mod

Jötunn, the Valheim Library

Jötunn (/ˈjɔːtʊn/, "giant"), the Valheim Library, was created with the intent to facilitate developer creativity, unify the communities problem solving efforts, and enhance developer productivity by curating a library of common helper utilities. Additionally, it supplies specific interfaces and abstractions which aid with mod interoperability, networked gameplay consistency, and remove the need to maintain valheim version specific code by acting as an interface between the developer and the games changing internals.

Jötunn is not JotunnLib is not ValheimLib

Jötunn was created as a joint effort to merge JotunnLib and ValheimLib into a single library to use the best of both worlds. It is possible to use all three libraries side by side so all current mods will continue working. But it is highly recommended to port your mod to this new library as the other two won't be actively developed anymore.

Usage

Please refer to our documentation. We have gone to great lengths to ensure there is ample documentation to facilitate the developers learning experience.

Installation

If you're using a mod installer, you can likely ignore this section.

For a more in-depth installation guide, please check out the manual installation guide in our documentation.

However, here is a quick run-down:

  • []Install BepInEx:

    Download BepInEx, extract everything inside BepInEx_Valheim into your Valheim folder (typically C:\<PathToYourSteamLibary>\steamapps\common\Valheim).

    []Install Jötunn:

    Download from either Nexus / Thunderstore, extract the ZIP and place all content into BepInEx/plugins/Jotunn of your Valheim install.

That's it, launch the game and mod away!

Features

JVL provides three distinct groups of features. Entities, which abstract the game's own entities into easy-to-use interfaces. Managers, which act as interfaces between the entities and native collections or subsystems. Utilities, which are there to aid in generic/common functions that can span many different areas.

Entities

- CustomCreature - Represents custom animals, enemies and NPCs.

- CustomItem - Represents ingame items such as weapons, tools and consumables.

- CustomItemConversion - Represents ingame item conversions for the CookingStation, Fermenter and Smelter in one abstraction.

- CustomLocalization - Represents custom localizations for your mod.

- CustomLocation - Represents custom locations from simple stone circles to complete villages.

- CustomPiece - Represent ingame building pieces.

- CustomPieceT

🤖 AI-enhanced — based on mod data

Jotunn is a core library mod for Valheim that simplifies mod development by providing an abstracted API, letting modders focus on content creation. With over 12,000 endorsements and 800,000 downloads, it's a staple for the modding community, though it offers no direct gameplay changes for players.

✨ Key Features

Provides an abstracted API for creating Valheim mods
Aims to make mod development easier by handling boilerplate code
Widely adopted with 12,080 endorsements and 803,597 downloads
Last updated July 2026, indicating active maintenance

📊 Pros & Cons

✅ Pros

  • Massive community trust with 12k endorsements and 800k downloads
  • Active development (updated July 2026) means it's likely compatible with current Valheim patches
  • Essential for modders—if you're making Valheim mods, this is the foundation you want

⚠️ Cons

  • Not for players—it's a developer tool, so no direct gameplay content
  • Requires understanding of modding concepts to use effectively
  • If you're not a modder, you'll only need it as a dependency for other mods
🎯 Is This For You?
For Valheim mod developers who want to skip boilerplate and focus on content. Also for players who install mods that depend on Jotunn—you'll need it for those to work. Skip if you're looking for gameplay changes; this is a backend library.
📦 Install:Easy· Under 1 minute

💡 Beginner Tips

  • If you're a player, just drop the DLL into your BepInEx/plugins folder—no extra setup needed.
  • For modders, check the official wiki for API examples before starting your first mod.
  • Make sure your Valheim and BepInEx are up to date to avoid compatibility issues with Jotunn.

📊 Mod Details

Game
Valheim Mods
Author
Valheim Modding
Version
2.29.0
Downloads
803,597
Endorsements
12,080
Category
Utilities
Created
4/30/2021
Updated
7/13/2026

🧩 Commonly Used Together

Users add these mods to the same collections — a real compatibility signal, not an AI guess.

🔧 How to Install Valheim Mods

Download from Nexus.

📖 Full step-by-step install guide for Valheim →

Visit the official mod page for specific installation instructions for this mod.

🎮 Need cheat codes or console commands? Check ur gaming wiki for Valheim commands, item IDs, and more.

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