Trendy Entertainment has released their first developer diary for their upcoming game Dungeon Defenders. The game, a mix of action, RPG, and tower-defense type games, will be available for Xbox Live Arcade and PCs on October 19th, with availability on the PlayStation Network at a later date. Trendy mentions in the video that gamers can play the same game cross-platform via GameSpy, which will be intriguing to check out. October 19th can't come fast enough.