The Frozen-Bubble server is a standalone program acting as a bridge between Frozen-Bubble clients (where the players are). It uses the IP protocol thus players need Internet connectivity (though it's possible to play LAN games on a LAN with IP support but no Internet connectivity). It has some logic to control creating and joining a game, and then becomes a pure relay for in-game information communicated between players.
WWW: http://www.frozen-bubble.org
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