The First 15 Minutes of Terraria (Wii U)

Copied from MobyGames:Terraria is a 2D sandbox action-adventure game. A player awakens in a procedurally generated world of forests, deserts, oceans, caverns, and ruins. Survival and exploration are the immediate objectives: gather materials, fashion tools, and build shelter before nightfall when stronger creatures roam. Progression emerges from exploring deeper and farther, locating rare resources, and confronting powerful bosses that gate access to new materials and areas. Non-player characters can settle in player-built housing. Meeting simple room requirements and fulfilling discovery or progression conditions invites merchants, medics, crafters, and other specialists who sell items, provide services, and enable new systems such as reforging or dye application. Towns improve safety by reducing enemy spawns nearby, and some NPCs offer quests that guide exploration.

http://www.nicovideo.jp/watch/sm46406182