Toga II is a chess program, derivative of Fruit created by Thomas Gaksch. It has more chess knowledge and perhaps a better search algorithm. It is based on Fruit 2.1 and is free.
One of the best space simulation is available also in a Linux version.
Thirty-two years have passed since the Great war. Terrans and Vasudans have formed a new alliance. But new threats are lurking around.
One of the BEST PC shooters yet! A fast paced slugfest, with a pulse-pounding sound track, and jaw-dropping VGA animation & cinematics. In the future as a mercenary flying the super-tech Raptor, you'll be sent on interplanetary missions to knock off top competitors of MegaCorps. Battle against hordes of relentless enemies. Spend the bounty you receive from their demise to expand your devastating arsenal, which can be upgraded with 14 hard core weapons!