A cross-platform PSP emulator
Desktop/Android/HTML5/iOS Java game development framework
Satisfying monster shooter
Open source HTML5 game framework that offers WebGL and Canvas
Java/JavaFX/Kotlin Game Library (Engine)
An open source reimplementation of the Among Us Server
KorGE Game Engine. Multiplatform Kotlin Game Engine & Korlibs
Netcode that provides networking capabilities to GameObject workflows
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
UCI chess engine
One framework for creating powerful cross-platform games
The game engine for everyone
Cross-platform game engine in Rust
Open-source engine for Heroes of Might and Magic III
Solar2D Game Engine main repository (ex Corona SDK)
Home theater software and entertainment hub for digital media
Action-adventure game originally released in 2013
Kotlin extensions for the libGDX game framework
Embeddable unity game engine view for Flutter
Gideros Release version
A MUD client for Android, iOS, Linux, Mac OS X and Windows
... the open-source glide computer
3D modeler, 3D game maker, 3D demo maker
Domination is a game that is a bit like the board game Risk
0 A.D. is a free, open-source, cross-platform real-time strategy game.