Real Time Strategy game engine supporting early Westwood classics
Solar2D Game Engine main repository (ex Corona SDK)
Open source clone of the Age of Empires II engine
Dust3D is a cross-platform open-source 3D modeling software
Custom launcher for modded minecraft written in Electron and Node.js
Lightweight console for Minecraft chat and automated scripts
RetroArch is a frontend for emulators, game engines and media players.
Free and open source real-time strategy game
3D Procedural Game Engine Using OpenGL
Powerful, mature open-source cross-platform game engine for Python
Open Source MMORPG Framework
The cross-platform toolkit
The HTML5 Creation Engine
Rcon client for Minecraft
The flexible game engine
An open source flight dynamics & control software library
Cross-Platform C++ 2D/3D game engine
NeoDB is a self-hosted server tracking what you read/watch/listen/play
Tactical 2D shooter in fishy pixels style. Made with Rust-lang
Write your game with TypeScript in UE or Unity
LayaAir is an open-source 2D/3D engine
Open source and cross-platform machine learning framework for .NET
RPG Maker 2000/2003 and EasyRPG games interpreter
Synchronize games from other platforms into your Steam library
Allows the connection of newer clients to older server versions