Xash3D FWGS engine
Embeddable unity game engine view for Flutter
Android, UIQ 3.0, Series 60 Edition 5 open-source software
3D Engine c++
INSTEAD - Simple Text Adventure Interpreter.
A MUD client for Android, iOS, Linux, Mac OS X and Windows
GemRB is a portable open-source implementation of the Infinity Engine
Free Texas Holdem Poker game using HTML5, CSS and JavaScript
0 A.D. is a free, open-source, cross-platform real-time strategy game.
Game engine supporting many 3D/2D formats and graphic effects
games for kids
Space shooter style game arcade version - Games/Entertainment Software
ZED OS the clone of Windows XP
A 2D game about Bunny and coronavirus
Free and Open Game Programming Language for Windows and GNU/Linux
God game: wage war from the stone age to the future
Real-time RPG for PC/tablet/phone; multiple quests and random dungeons
Jumping game for Linux, Windows, Android and Mac OS written on GDScrip
A cross-platform interpreter for many point-and-click adventure games
Android, DOS, FirefoxOS, Linux, MacOS and Windows all in one..
This is a hacking style game set in the early '80s
Cross platform Game Creation Software