KardsGT is a free sourced card game suite. We want to bring an
immersing card game environment to the free sourced world. It is
currently in a beta-level of development. Despite that it is quite
playable. Currently you can play Cribbage, Euchre, Hearts, Old Maid,
Spades, and War.

WWW: http://kardsgt.nongnu.org/
