We've seen Dungeon Defenders a couple of times in the last year, but during the latest demo one thing became abundantly clear to me: your life depends on the players standing next to you. Having a good team i.e. one that calls out weaknesses in defense, lets you know when great armor drops, heals your defenses and not just their own makes the difference between success and failure. In this tower defense/third-person action mash-up, being selfish and winning just don't go hand-in-hand...