Host your own lobbies and dedicated servers, and mod it
A cross-platform IO layer for an interactive fiction player
RISC-V CPU simulator for education purposes
FlightGear Flight Simulator: free open-source multiplatform flight sim
A network server for the flightgear simulator
GameServer is a sophisticated, game server designed for online games
A fun realistic multiplayer free-and-open-source first-person-shooter!
A Sudoko Solver/Puzzle Generator For MS Windows
Lumina is a visual game creation environment for building 3D games.
Digitale Modellbahnsteuerung
2D Open Source MMORPG
MUD server, based on CircleMUD code, russificated
DIS(IEEE 1278.1) Fully Implemented in C++
MIT Licensed Open Source version of Torque3D from GarageGames
turn-based wargame/simulator
Mini game engine for games104
Procedurally-Generated Game-Like Gym-Environments
Turn Off your Wireless Xbox 360 Controller on PC
3D representations of flowers, flower elements, bouquets or meadows
Fractal planet and terrain generator
Open-DIS implements the IEEE DIS protocol in multiple languages.