Simkin is a scripting language for Java/XML. Simkin is designed to let your users control all or part of your Java application. They write scripts in a very simple scripting language which can be embedded in XML. The scripts can call down into the API you've exposed from your Java classes. You write the mechanism, your users write the policy.
SuperTux is a side-scrolling platform game. The hero in this game is Tux the Penguin, the game's only reference to Linux. On the journey to rescue Penny, who has been kidnapped by evil Nolok, Tux faces 23 different kinds of bad guys while jumping and running through 101 beautifully-drawn levels. The soundtrack is available on last.fm and similar sites.
The Ark Roleplaying Kernel is a roleplaying engine that will allow game developers to create a full- featured role playing game, without having to write a single line of C++. All they have to do is to create game data (models, textures, world), and define the behaviour NPCs, in Lua. The engine contains a full outdoor 3D engine, with support for skeletal animation, and triangle- accurate collision detection. It also contains tools to create world and quests, and loaders for the most common low-polygon 3D formats.
Ren'ai/Dating Simulation Engine is derived from a type of computer game from Japan. The player controls a point of view (POV) game character, who interacts with other game characters in the hopes of winning the love of one of them. So far all of these games are closed source, and none have been translated into English. The Ren'ai includes a cross platform, internationalized game engine, on which dating sim type games can be played, plus an English based game to play on that engine.
Kobo Deluxe is an enhanced version of Akira Higuchi's game XKobo. It adds sound, smoother animation, high resolution support, OpenGL acceleration (optional), an intuitive menu-driven user interface, joystick support, and other features. Kobo Deluxe uses SDL for graphics, sound, and input, which makes it possible to run the game on a very wide range of platforms.
KQ is a old school console-style RPG. Take the part of one of eight mighty heroes as you search for the Staff of Xenarum. Visit over twenty different locations, fight a multitude of evil monsters, wield deadly weapons, and cast powerful spells. On your quest, you will find out how the Oracle knows everything, who killed the former master of the Embers guild, why no one trusts the old man in the manor, and what exactly is terrorizing the poor Denorians. It was abandoned by its original author and rescued by the Allegro community. KQ runs on DOS, Windows, Linux, and OS X.