GZDoom is a feature centric port for all Doom engine games
Mangos ZERO is a server for World of Warcraft
A completely free, open-source, 2D game engine
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Archipelago Multi-Game Randomizer and Server
Self-hosted CMS platform based on the Laravel PHP Framework
Free game engine for development of desktop, mobile, and web games
Create custom themes for the Nintendo Switch
Mod manager for the video game RimWorld
JavaScript-based game engine designed to empower developers
Cross-platform, open source, and super fast MUD client with scripting
Voxel game engine in C++ with OpenGL
Free and open source real-time strategy game
API and runtime that allows access to VR hardware
Minecraft map editor and mod
Fully async, multithreaded, predictive, open source, 3.01 reach
A Balatro Modding Framework
Empowering everyone to host fast and efficient Minecraft servers
C# application with primary purpose of farming Steam cards
Stride (formerly Xenko), a free and open-source cross-platform C# game
Grimmory is the successor of booklore
Turn Claude Code into a full game dev studio
Free, Secure, Distributed, Modern Control Panel for Minecraft
A free and open-source Touhou Project fangame
The Tiny JavaScript Game Engine That Can!