Halyard is a scriptable multimedia engine with support for video, audio, graphics, and user interaction. It currently runs on Windows, and has a preliminary Macintosh port. It is based on PLT Scheme, wxWidgets, and the Quake 2 Engine. It includes a rudimentary IDE based on Scintilla.
Sepp is a version of the classic sliding puzzle game in which the properly ordered tiles form a picture. The picture is user-selectable, as is the tile-grid geometry. Additionally, Sepp implements an innovative kind of player aggravation: based on a user-configurable degree of evil, it decides, during each animation frame, whether it will disturb a tile while the game is in progress. Sepp is written for the DrScheme enviroment, which is available for all major platforms.
Thousand Parsec is a turn-based space empire building game, as well as a framework for creating a similar group of games, which are often called 4X games (eXplore, eXpand, eXploit, and eXterminate). Some examples of games from which Thousand Parsec draws ideas are Reach for the Stars, Stars!, VGA Planets, Master of Orion, and Galactic Civilizations. Unlike commercial alternatives, it is designed for long games supporting universes as large as your computer can handle. It allows a high degree of player customization, and features a flexible technology system where new technologies may be introduced mid-game.