Batman: Arkham City is a vast game, especially for completists. Even though I collected every Riddler trophy in Arkham Asylum, I'm not sure that I'm prepared to track down the more than 350 collectible items scattered throughout the sequel. That's some Banjo-Kazooie nonsense, right there.

The Rocksteady-endorsed Batman Arkham City Official Map App makes the task seem much more doable, offering interactive maps for every area in the game, along with locations and solutions for every Riddler challenge. It's a cheaper and more compact alternative to a strategy guide, and I hope the idea catches on. Developer Dorling Kindersley also offers similar apps for L.A. Noire and Dead Island.

[via Joystiq]