An OpenGL RTS game engine written in C
A free and open-source Touhou Project fangame
A lightweight online game framework
Android, UIQ 3.0, Series 60 Edition 5 open-source software
Svelto ECS C# Entity Component System
An open source implementation of the Ultima Online Classic Client
Zig game engine & graphics toolkit
Application that allows you to add multiple accounts into one apps
Build multiplayer web games played by millions
Access GameLift resources and integrate GameLift into your Unity game
Open source library for creative expression on the web, desktop, etc.
lua dev plugin for unreal engine 4 or 5
An Open Source DOS emulator to run old DOS games
VR Mosaic - C++ Builder Applet v.2.5
Soft-body physics simulator
God of War Gameplay Tweaks
Action RPG that's easy to mod
A strategy game with a high fantasy theme
FlightGear Flight Simulator: free open-source multiplatform flight sim
RTS game with the theme of Strategy by Design
A planetarium software that shows a 3D simulation of the night sky
An implementation of the popular Sokoban puzzle game. Win/Mac/Linux