Aviation is a flight simulator meant to be somewhere in between accurate but complicated simulators and simple toy simulators that don't provide any level of realism. It currently features a non-linear flight model, a configurable atmosphere and sky model, and a CLOD triangulation engine for the terrain. Currently Aviation allows you to fly around in an area of around 600 square kilometers centered around the Columbia river. It can be easily extended to implement combat or air race scenarios, for example.
DoudouLinux is a system specially designed for children 2 years and up. It is available as Live CDs and USB keys as well as ARM images. The main goals are to be as easy to use as a game console, provide as many kid-oriented applications as possible (currently around 50), drive small children into mastering computer use from age 2, be natively in child-friendly language without any action, be simple for Dad and Mom too (no administration, no updates; it’s a read-only system). It includes Web content filtering.
EZDM (ezdungeonmaster) is a simple set of tools for dungeon managers, targeting AD&D 2nd edition rules. It's not an RPG game, but some helper tools for people DM-ing real games, and is designed not to get in the way of roleplay and storytelling, but simply help do the math during encounters and leveling. Dice rolling can be done by the computer, or the tools can be set for manual dice, in which case you simply enter the results of the roll. All game data, charts, and character sheets are stored in JSON format. The EZDM kit defaults to using a simple dialog-based GUI which requires easygui, but a console interface is also available.
Gibbon is a graphical client for playing backgammon online on the First Internet Backgammon Server or servers that use the FIBS protocol. It is platform-independent, using GTK+ for its user interface. It also contains a converter for different match formats. Currently supported are the Smart Game Format, JellyFish, and JavaFIBS.
HexGlass is a Tetris-like puzzle game based on a hexagonal grid. Ten different types of blocks continuously fall from above and you must arrange them to make horizontal rows of hexagonal bricks. Completing any row causes those hexagonal blocks to disappear and those above move downwards. The blocks gradually fall faster and the game is over when the screen fills up and blocks can no longer fall from the top.