🛠️ How to Install Mods with LemonLoader on Meta Quest: A Complete Guide

LemonLoader is a powerful modding framework built for Unity-based Android games, most notably on Meta Quest headsets. It allows you to inject “code mods” (.DLL files) directly into your favorite games like Bonelab, enabling custom features, mechanics, and much more.

This guide breaks down the entire mod installation workflow, from finding the right mods to verifying they’re working in-game.

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📂 Understanding How LemonLoader Uses Mods

Before you begin, it’s helpful to know how LemonLoader structures mods:

Folder/File	Description
Mods/	Main folder for placing mod .DLL files. Located at: Android/data/com.developer.game/files/Mods/ (Replace with your game’s package name, e.g., com.StressLevelZero.BONELAB)
.DLL Files	These are the actual code mods compiled as dynamic libraries.
UserData/ (optional)	Some mods may store configuration files or settings here. Users typically don’t place .DLL files in this folder manually.

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🔁 Full Mod Installation Workflow

✅ Prerequisite: LemonLoader Installed

Make sure LemonLoader is installed and that you’ve launched the game at least once to auto-generate the necessary folders (like Mods/).

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🔎 Phase 1: Get the Mods

1. Find the Mods You Want
   Browse communities, Discords, or sites like Thunderstore.io for your game (e.g., Bonelab).
2. Use Trusted Sources ONLY
   Stick to:
   • Thunderstore.io
   • Modding Discord servers
   • Official GitHub/Patreon pages
   ❗ Avoid shady websites — mods from untrusted sources can be dangerous!
3. Check Compatibility
   • Game Version (e.g., Bonelab Patch 3 vs. Patch 4)
   • LemonLoader Version
   • Dependencies (e.g., BoneLib is required for many Bonelab mods)
4. Download the Files
   • Mods are usually .DLL files or zipped archives containing .DLLs.
   • Extract if needed to access the .DLL files.

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📤 Phase 2: Transfer Mods to Your Android Device

Option A: SideQuest (Recommended for Quest users)

1. Connect your Quest via USB → Enable USB Debugging.
2. Open SideQuest → Click the file browser icon (folder).
3. Navigate to:
   Android/data/com.developer.game/files/Mods/
4. Drag and drop your .DLL files into the folder.

Option B: ADB Command Line

1. Open Command Prompt or Terminal where ADB is installed.
2. Use this command: bashCopyEditadb push "C:\Path\To\Mod.dll" /sdcard/Android/data/com.developer.game/files/Mods/

Option C: File Manager (On-Device)

1. Download the mod directly to your Quest.
2. Use a file manager app (e.g., CX File Explorer).
3. Extract if zipped, then move .DLL files to:
   Android/data/com.developer.game/files/Mods/

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🎮 Phase 3: Launch Game & Verify Mods

1. Open the Game
   Launch your modded game (e.g., Bonelab).
2. Observe First Launch
   Initial startup might take longer — this is normal as LemonLoader processes mods.
3. Look for In-Game Mod Features
   • In Bonelab, many mods use BoneMenu, accessed via your in-game watch.
   • Other mods may add menu options or work silently in the background.
4. Test Your Mods
   Try out the new features, weapons, UI changes, or game mechanics added by your mods.

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🧩 Troubleshooting: When Mods Don’t Work

Problem	Solution
Mods not appearing	Ensure .DLL files are in the correct Mods/ folder.
Game crash or nothing happens	Check mod compatibility with your game + LemonLoader version.
Mods require dependencies	Install required mods like BoneLib.
Mod conflicts	Remove mods one-by-one to identify problematic ones.
Corrupted mod	Re-download from a reliable source.
Still stuck?	Use SideQuest logs or adb logcat to debug LemonLoader errors.

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📘 Example: Installing a Bonelab Mod on Quest 3

1. Goal: Add a new custom weapon mod.
2. Mods Needed: CustomGunMod.dll + BoneLib.dll.
3. Source: Download both from Thunderstore.io.
4. Install:
   • Connect Quest to PC.
   • Use SideQuest to copy both .DLL files to:
     Android/data/com.StressLevelZero.BONELAB/files/Mods/
5. Launch Bonelab.
6. Open BoneMenu, enable the mod, and start playing!

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✅ Best Practices for Safe Modding

• 🔐 Back Up Save Files:
  Find them at Android/data/com.developer.game/files/Saves/.
• 🔍 Start Small:
  Test a few mods first before loading dozens.
• 📖 Always Read Mod Instructions:
  Some require specific folder paths or extra setup.
• ⚠️ Avoid Updating Immediately:
  New game patches can break mods. Wait for the modding community to catch up.
• 💬 Join the Community:
  Discord servers and forums are great for support and discovering new mods.

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🔗 Official Links

• LemonLoader Website
• Thunderstore Mods for Bonelab
• Bonelab Modding Discord