Superficially, Dominoes on Acid is a solitaire variant of Dominoes with weird colorful tiles (and this view is enough to play the game). But on a deeper level it is a GUI for natural deduction. Every completed domino is equivalent to a proof of a tautology in classical propositional logic. The game can be played online as an applet or offline as an application. It is built on a simple isometric engine that can be used independent of the game.
Jetrix is a TetriNET server designed for maximum scalability, extensibility, and ease of use. It features a Web-based administration console and a simple API to let developers add custom commands or change the channels' behavior with little knowledge of the server's inner functioning. The ambitious goal of this project is to create the ideal platform for TetriNET programmers.
Tombs of the Asciiroth is a puzzle/RPG/roguelike game you can either play in a Web browser or as an Adobe AIR application (available for Mac, Windows, and Linux). It is simple to play compared to most roguelikes, but the provided scenario should allow for some in depth game play. A map editor also exists to create new scenarios.