Arx Libertatis is a cross-platform, open source port of Arx Fatalis, a 2002 first-person role-playing game developed by Arkane Studios. Arx Fatalis features crafting, melee and ranged combat, and a unique casting system where the player draws runes in real time to effect the desired spell. The Arx Libertatis source code is based on the publicly released Arx Fatalis sources. This does however not include the game data, so you need to obtain a copy of the original Arx Fatalis or its demo.
Auralquiz is a simple music quiz game that uses your own music files. It plays short pieces of music files from your folders and presents a question and several answers about the current song. The faster the answer, the more points you receive. Up to eight people can play in a turn-based mode. In the highest difficulty level, instead of having the buttons, the player must type the answer. Symbols like "!", "-", "." etc are filtered out, and it's not case sensitive, so it's a little easier to answer correctly.
Minesweeper 3K is an original implementation of the classic game of Mines. Games can be saved and loaded. High scores are saved by level. The game is paused when the window loses focus. Several styles of the game are available, with the possibility to add new styles without having to change the code. The game is internationalized in five languages.
QMentat helps you practice mental arithmetic. It uses arbitrary-length fixed point arithmetic, and can handle any size numbers, only limited by the size of your screen (and in the case of division with an integer result, the speed at which the number can be factored). It is also quite configurable, allowing you to tailor the questions to your needs.
Smart Challenge is a computer game to exercise logical thought by solving millions of randomly generated tangram puzzles. It allows you to create and store new puzzles and display the ranking of solution times for each puzzle. Additionally, it has levels of difficulty for the random generated tangram puzzles.