The game engine for everyone
Open source clone of the Age of Empires II engine
A retro game engine for Python
Java/JavaFX/Kotlin Game Library (Engine)
A Minecraft plugin API
Ct.js is a desktop game engine that makes learning programming fun
Entertaining and interactive game of solving 50+ puzzle pieces
Open source voxel world
The original Blooket hack
Enigma is a puzzle game
Good-looking and addictive OpenSource games
Colonize the New World.
A very richly featured implementation of the Sokoban puzzle game
LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
puzzle game based on hexagonal tiles
Free Online MMORPG with Battlegrounds
A 2D scrolling platform shooter, inspired by Duke Nukem 1
The Sokoban game implemented in Java.
Zoomable user interface (ZUI) with file manager, file viewers and more
VR Adrix Java Works - Paged Lists - Action-Entity Model ...
INSTEAD - Simple Text Adventure Interpreter.
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
Kubok16 is a math puzzle similar to Sudoku.