Open-source Android/Desktop remake of Civ V
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Xash3D FWGS engine
Cross-platform game engine in Rust
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Multi-platform 2D and 3D game engine
A dead simple 2D game engine for Go
Use the Delta Executor APK with Roblox on a Windows PC.
3D Engine c++
Android, UIQ 3.0, Series 60 Edition 5 open-source software
GemRB is a portable open-source implementation of the Infinity Engine
INSTEAD - Simple Text Adventure Interpreter.
A MUD client for Android, iOS, Linux, Mac OS X and Windows
Orx: Data-Driven Game Engine
Free Texas Holdem Poker game using HTML5, CSS and JavaScript
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
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
A JavaScript game library to quickly develop board games for the web