A free and open-source Touhou Project fangame
Sokoban with many families of puzzles provided.
Klotsky class block slider puzzles.
Soccer-themed 3D Sokoban Game
Modular Gaming Open Source Persistent Browser Based Game Framework
Keep track of your favourite TV shows.
Rhye's and Fall RAND, with some tweaks and additions
Avoid black Pixel-Blocks
A free Python 3 text-based MUD game server
CM Game Development Kit