PeerProject is a versatile peer-to-peer filesharing client and file manager. It's intuitive and aesthetic while supporting many networks and features, including BitTorrent, G2, Gnutella, eDonkey, DC++, IRC, HTTP/FTP, and more. It's a mainstream fork of Shareaza p2p, for Windows and WINE.
Tanky is a tank shooting game with old-school graphics (lines and flying pixels in 16 colors). It can be played by 2-3 players on one keyboard. The main goal is to shoot your opponents down. You have one tank, five shots, and a shield which can take five points of damage. Every time, there are different bonuses flashing around. Collect them and gain faster weapons, more shots, recharge your shield, etc. The best-scored player wins.