I'd recommend roguelikes in general. Run and done in a sitting, and you can't really optimize the same way as the game has hidden/random elements.
Two I'd recommend looking at: FTL and Into the Breach.
Two I'd recommend looking at: FTL and Into the Breach.
Was about to post this :)
All of those take anywhere from 30 to 90 minutes to complete once you get a hang of it.