Hey this hasn't been mentioned here yet, so I think this deserves a quick mention. It's just released early access so it's not done, but it's a good foundation to build on, and already fun.http://store.steampowered.com/app/552080/
It's a roomscale submarine game, best suited for coop play though, in my opinion, but perfectly playable in sp. You need the minimum required roomscale space or things will be out of reach. Each player can be in charge of their own section of the sub, but for now anymore than 3 players will be to crowded for the departments that there is right now. You control the sub through several handles and switches and wheels, and there are two departments so far, with more to come. There are also gauges which show damage, depth, oxygen etc. Also there is an anti aircraft gun on the deck or what ever it's called.
While it doesn't support Touch officially it works fine, the hands are slightly off position, but not in anyway something that interferes with anything, you notice and then you forget.
Check it out if you are into these types of games.