http://code.google.com/p/magarena/ http://code.google.com/p/magarena/ Magarena is a GPLed program to play almost Magic: the Gathering. There is only a small ru

http://code.google.com/p/magarena/ http://code.google.com/p/magarena/ Magarena is a GPLed program to play almost Magic: the Gathering. There is only a small rule modification to simplify AI calculations: the defender chooses how combat damage is distributed, not the attacker. Magarena doesn't have ALL the cards - only close to 3000 - but it has disturbingly good AI. Several AI algorithms to choose from, in fact. It plays like a bastard, and despite having a few flaws (sometimes it performs suicide attacks, it doesn't save cards for later, is bad with activated abilities and doesn't guess what card you might have in hand) you will dearly regret underestimating it. More cards are coming, but each new mechanic needs to be coded separately.