CTFs as you need them
Open-source OpenGL/SDL2 reimplementation of Sid Meier's Alpha Centauri
A game framework written with osu! in mind.
A free/open source client and automation tool for Ragnarok Online
An open source flight dynamics & control software library
Magic Another Game Engine
Botcraft is a cross-platform C++ library to create bots
Gideros Release version
Free, open source game engine online
Download Bunni Executor, the ultimate keyless Roblox script executor
Sokoban with many families of puzzles provided.
Klotsky class block slider puzzles.
A simple math library for games and computer graphics
Advanced map editor
Procedurally-Generated Game-Like Gym-Environments
A Hack Client created from curseforge creators since 2021
Web-based Cloud Gaming service for Retro Game
KlayGE is a cross-platform open source game engine
A complete web framework to create online Fighting Fantasy adventures
Isometric space station 13
Main repository with actual Space Station 13 sources
A public domain cross platform 3D game
Fixes and Updates for Atomic Tanks, mainly AI related.
An adaptive skirmish AI for Warzone 2100.