Halo 3 Tournaments at Gamer Coliseum!

Gamer Coliseum gives you the opportunity to compete in 1v1 and MLG Halo 3 Tournaments in under a secure website. We are the ultimate destination for all competitive play on Halo 3 for the Xbox 360.

Sign up here to compete in Halo 3 for cash prizes. Run competitive 3 or 5 team game series or 1v1 Guardian games for real money!

GamerColiseum.com offers the ability to play in 4, 8, 16, 32, 64, 128, and even 256 player tournaments! Buy in to one of our Halo 3 1v1 Online Tournaments for a chance to make some money playing in the comfort of your own house! It is time to prove that you have what it takes to compete in the Coliseum and get Halo 3 MLG experience.