0 A.D. (pronounced "zero ey-dee") is a cross-platform real-time strategy (RTS) game of ancient warfare. It's a historically-based war/economy game that allows players to relive or rewrite the history of ancient civilizations, each depicted at their peak of economic growth and military prowess.
AIME is a C++ MUD engine with an OO design, designed to provide utmost flexibility for the designer to create complex worlds. It has a fully-functional builder port, online interpreted specials code, and a flexible levels/quest/profession track system to allow the game owners to set up any world they can imagine.
Abandoned Bricks is a Tetris clone where bricks of various shapes fall from the top and you can move and arrange them to fit nicely on the bottom. When you fill a line without holes it is removed from the heap. It can be played either in a single-player or in a duel-mode with two players playing hotseat on the same computer. There is also a Bastet mode, based on the Bastet game by Federico Poloni.