RPG Maker 2000/2003 and EasyRPG games interpreter
Here we're trying to create the easiest open-source game engine.
A modern, cross-platform Quake game engine based on FitzQuake.
A cross-platform port of Hexen II game.
Real-time RPG for PC/tablet/phone; multiple quests and random dungeons
An HTML5 game 'Catch The Cat' powered by Phaser 3
A arcade like shooting game with a cat (alpha)
opensource clone of Duke Nukem Manhattan Project