InfonBattleArena
From 23C3 Public Wiki
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About
Infon Battle Arena is a networked multiplayer real-time programming game featuring little creatures fighting for food. You upload your Creature Code (written in Lua) to a game server using a telnet Interface. The game server then runs your code. The graphical client can be used to watch running games or replay recorded games.
Feel free to join us on channel #infon on irc.freenode.net.