Though the first two minutes of the Dungeon Defenders dev diary above goes into great detail about the game, the final thirty seconds or so is just a guy listing awesome, applicable buzz words: "RPG, DotA, hack-and-slash, four-player co-op, Steam support, free hot dogs." (That last one was our own.)
Dungeon Defenders is an original hybrid of two hot genres: Tower Defense and cooperative online Action-RPG!
The game puts players in the role of one of four distinctive hero classes, tasked with fending off hordes of invading beasties by strategically summoning a variety of Defenses and Traps throughout their castle. But as much more than just a strategy game, players directly participate in the action-packed combat with their hero characters, while upgrading their statistics, gathering tons of loot and inventory items, customizing and upgrading equipment, and developing unique class abilities. All of this can be enjoyed in seamless online and split-screen local multiplayer, as players cooperate and compete through the story campaign and challenge missions to build the strongest heroes and achieve the highest scores in the kingdom.