This is a two player cardgame for Linux/KDE2 according to the rules of the German Offiziersskat. Each player has a set of 16 cards and tries to win more points than his/her opponent. This is done by playing a card, trying to win it and then being able to uncover one of your covered cards.
SecureSkat is a peer-to-peer implementation of the German card game Skat. The program negotiates possible players and game sessions over an arbitrary IRC network (Internet Relay Chat). Further it employs LibTMCG to gain a reasonable level of security.
Schafkopf is a popular Bavarian card game. It is also know as Sheepshead in parts of the USA. SchafKopf is a KDE version of this game. SchafKopf is freely available under the GPL. It has an easy to use GUI, a custom Bavarian Card Deck, an advanced AI, a network mode and much more.
A multiuser textbased (via telnet) server application for the card game UNO.
XSkat lets you play the card game Skat as defined by the official Skat Order on any Un*x machine running X11. It has single and multiplayer mode, allows you to play over a LAN or via IRC, has game lists and logs. Includes the variations Ramsch, Bock, Kontra & Re.