Space Exploration: Serpens Sector is a very long-running project to make a space exploration game in the vein of Strange Adventures, Star Control, and others. It's gone through a number of iterations and refinements over the years. In its current state, it is now gameplay-complete. The gameplay focuses on making interesting decisions balancing risk, reward, limited resources, the morale of your crew, and your reputation with the alien factions of the sector. The gameplay does not focus on combat.
Escluderlate is a Java game for mobiles and portable devices (J2ME). The scope is surviving inside the arena more than the computer controlled opponent(s). You have to avoid crashing on the walls that each player leaves behind. You can move your pointer using the arrows, or the keys 2(up), 4(left), 6(right), and 8(down). Escluderlate contains 21 different levels and 3 different speeds, but it's easily extendable.
The Build Order Anlyzer for the Axis & Allies RTS is a tool for analyzing builds in the Axis & Allies RTS game. A "build order" in an RTS game defines the order in which a player builds their buildings, units, and upgrades. Understanding the timing and effect of various build trees is critical in making the appropriate tactical decisions during the game. The BOA allows a player to build and analyze multiple build orders without playing a game. It is especially useful when trying to figure out how to counter a particular build, and can save many hours of game play.