B-52's Micro Tournament v0.62b by Elil and edited by B-52 supports up to 12 players in tournament FFAImprove your micromangment skills in tournament form. By far the best way to practice Micro. Even if you only play ladder this is a must
Aeon of Evolution v1.3 by FuLook supports up to 10 players on 2 teams 2 teams go at it in classic Aeon action with a twist. After you reach level ten you evolve to another level of hero. Keep going until you kill the enemy