#5 Etrian Odyssey IV: Legends of the Titan
The first game of the series to be released on the 3DS, Legends of the Titan is a 3D dungeon crawler role-playing game by Atlus. It involves challenging players with vast dungeons to explore and map, similar to how you would play a game like rogue. Time does not pass unless you take an action and combat is entirely turn-based.
Etrian Odyssey IV sets the player in the role of explorers discovering the secrets of the tree Yggdrasil, the World Tree, the roots of which have never been touched. Unlike previous games in the series, enemies are actually moving 3D models rather than the earlier 2D sprites.