Aleph One is an Opensource version of the Marathon engine made by Bungie.
Beatbox is a rhythm-based game where you have to press buttons synced with music. The screen has two parts, the left one where where the stick is used and the right one, where the four buttons are used. Beats will appear in the middle of the two circles and will move outward.
Buttongame is a tiny game.
GP2X of Life
GP2XOfLife is a simple implentation of "Conway's Game of Life".
LIFE2X is a simple interpretation of John Conway's Game Of Life.
Payback Music Manager
Payback Music Manager helps you to easily include or remove custom music into the commercial version of Payback.
The Room was planned as an adventure game based on the awesome Onscripter engine.
Verge is a game engine designed to help people make rpgs, but it can actually make most any game in a Genesis/ Super Nintendo style.