MelonLoader Mod Collection v1.0

OP
MODS LIST

A powerful in-game spawn browser collection for REPO. Press . (period) to open the GUI, search any item, and spawn it instantly. Auto-discovers prefabs, supports bulk spawning, and works with reflection-based game integration.

⬇ Download Learn More
Scroll

Features

Everything you need to spawn anything

🎯

Instant Spawning

Click any item in the GUI and it spawns right in front of you. Configurable count and distance.

Key: . (period)
🔍

Auto-Discovery

Scans all loaded GameObjects, asset bundles, and game managers (PunManager, LevelGenerator) to find every spawnable item automatically.

Auto Tab
📂

Dual Mode Tabs

Browse curated categories (Valuables, Consumables, Enemies, Utilities) or switch to the Auto tab for every discovered prefab at runtime.

Manual + Auto
🔎

Search & Filter

Type any name to instantly filter through potentially hundreds of items. Works across both Manual and Auto tabs in real time.

Real-time

Bulk Spawn

Set Count to any number and spawn multiple copies at once with automatic offset positioning. Go from 1 to 999 in one click.

x1 – x999
🧩

Reflection Integration

Uses known REPO internals (PunManager, SemiFunc, PlayerAvatar) to find spawn methods dynamically via .NET reflection.

C# / .NET 6

In-Game Preview

The spawn browser as it appears inside REPO

▼ OP Mods ▲
Manual Auto

Designed for Speed

The spawn browser is built with Unity's IMGUI system — lightweight, responsive, and rendered directly inside the game. No external dependencies, no config files, no hassle. Just press . and spawn.

  • Toggle with a single keypress — no menus to dig through
  • Search filters in real-time across every discovered item
  • Auto-detects items from the game's loaded assemblies and bundles
  • Spawns with proper physics, collision, and world positioning
  • Fully open source — customize anything, rebuild, and drop in

Download

Get the mod source code and project files

v1.0.0 MelonLoader

OP Mods List

A curated collection of MelonLoader mods for R.E.P.O. Full source code, project files, and detailed setup guides. Build them yourself or grab the pre-packaged ZIP.

⬇ One-Click Download (Windows) Saves to your Downloads folder ⬇ One-Click Download (Linux) Saves to your Downloads folder
📦 Download ZIP Source + project + README
⬇ install_mod.bat ⬇ install_mod.sh
Size: Platform: Windows / Linux Requires: MelonLoader

Installation

Get it running in 6 steps

Step 01

Install MelonLoader

Download the MelonLoader installer and run it against your REPO.exe installation. It injects the mod loader into the game.

steamapps/common/REPO/REPO.exe
Step 02

Install .NET 6 SDK

Required to compile the mod from source. Download from dotnet.microsoft.com or your package manager.

dotnet --version
Step 03

Download & Extract

Download the ZIP above and extract it anywhere on your computer. You'll get the full C# project.

RepoMod/SpawnMod.cs
⬇ Windows Script ⬇ Linux Script
Step 04

Fix References

Edit RepoMod.csproj and update the HintPath entries to point at your actual REPO install folder.

REPO_Data/Managed/*.dll
Step 05

Build the Mod

Open a terminal in the RepoMod folder and run dotnet build. The compiled DLL will appear in bin/Debug.

dotnet build
Step 06

Install & Play

Copy the built DLL to your REPO Mods folder, launch the game through Steam, and press . to open the spawner.

REPO/Mods/OPMods.dll

Project Files

Browse and download individual source files

FileSizeDownload
Loading files...

Technical Details

What makes it tick under the hood

🖥️

Unity IMGUI

Rendered via OnGUI — no dependencies, works in any Unity version. Lightweight and fast.

UI System
🔮

.NET Reflection

Dynamically discovers PunManager, SemiFunc, and PlayerAvatar classes at runtime.

Runtime
📡

Auto-Discovery

Scans Resources, AssetBundles, and manager fields for item prefabs using 3 strategies.

3 Strategies
🔧

MelonLoader

Built on the standard Unity modding framework. Hot-patches the game at runtime.

v0.6+