Disrupt Cards - Silicon Valley’s funniest card game
Cockatrice - Cockatrice is an open-source, multiplatform program for playing tabletop card games over a network.
Web Trumps - A nerdy card game all about startups
Hearthstone - Pick up your cards and throw down the gauntlet!
PitchEasy - The card game that lets you pitch over 80 million Ideas
XMage - XMage allows you to play Magic against one or more online players or computer opponents.