Hope it runs on iOs 5.1.1. I have an iPad 1 and won't upgrade soon.
Unfortunately Battle Fleet 2 won't be compatible with the original iPad. That device doesn't have the required memory or graphics processing to handle the updated graphics of the game.
Tried (was forced to sign up for) Steam for one game (Elder Scrolls) I loved from its first buggy stand alone PC release. Then the new version came out and was only available on Steam. My current opinion on Steam is "Bill Gates couldn't pay me enough to use Steam". Don't go that route please.
developer of "Battle Fleet"