Ultimate General: Gettysburg

I picked this up on Steam last night for 6 quid on the early access page. It's by the guy known as Darth Mod who did the total war mods (well as far as I know, packaged other peoples mods together and called them Darth Mod).

Anyway, its pretty basic on the surface, but actually quite deep and a really good fun. I'd have probably paid about £10 to £15 for it, even in its current state its more than playable.