AppGamer have put together an online guide to the tower defense game, Four Days: World Defense. The guide contains an overview of the towers in the game plus a guide to each level.
Four Days is a beautiful, simple, yet engaging tower defense game created by FridgeCat Software. The game features fluid 3D graphics, simple but attractive design and progressive difficulty that doesn't require a steep and frustrating learning curve for new or veteran players. The full review is over on AppGamer.
