Orcs Must Die or Dungeon Defenders?

Which game should I get?Orcs Must Die or Dungeon Defenders?
Go with Orcs Must Die! it is a lot of fun and it has a good feel to it. Only downside is that there is no multiplayer which is something Dungeon Defenders has. Here you can check out this reviewOrcs Must Die or Dungeon Defenders?
Orcs must die...Orcs Must Die or Dungeon Defenders?
Dungeon Defenders [Download] is a Tower Defense Action-RPG where you must save the land of Etheria from an Ancient Evil! Create a hero from four classes to fight back waves of enemies by summoning defenses and directly participating in the action-packed combat!