While Castlerama sounds more like a European music festival, this trailer of the upcoming iOS game is intriguing. It's first person, it looks to have a full world to explore, and it seems to be somewhere between adventure game and western rpg. Have a look at the trailer and see for yourself.
While it could do with a little more polish in areas, as a mobile experience it seems to have a lot to offer. Whether they can deliver or not will remain to be seen. The game is shooting for a release date of June 20th.