CTFs as you need them
Open-source OpenGL/SDL2 reimplementation of Sid Meier's Alpha Centauri
An open source flight dynamics & control software library
A free/open source client and automation tool for Ragnarok Online
A game framework written with osu! in mind.
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
An unmodified version of the MMORPG Impressive Title by KovuLKD
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
Simple Application for testing and improving typing speed.
Main repository with actual Space Station 13 sources