The International Doom League has opened sign-ups for their Winter 2013 season. The Winter 2013 season is the league's 13th season of play and will be the second full season to be played using the multiplayer source port Odamex. In addition to making sign-ups more accessible for newcomers, the IDL has instituted a number of new changes to gameplay rules, scheduling, and playoff format. The IDL is Doom's premiere outlet for competitive play. Visit their forums to sign up or find more info on the current season. For more direct contact and a chance to participate in daily organized CTF games, you can visit the league's IRC channel at irc.quakenet.org #idl.