As you may have guessed, the game doesn't offer too much in terms of depth and that is one of it's sellling points, it's minimalistic. There are three unit types for you (Sword and Boards, Pikes and Archers), about 4 items to give to your commanders to increase their numbers, or give them new skills. Each unit class additionally has 1 unlockable and upgradeable skill each. There are however some balancing issues (one enemy class is especially annoying), but overall, it's very enjoyable. I hope this isn't considered spam, but if you want to read up more about the game and maybe create content around the game yourself, feel free to visit the unofficial fanmade wiki: http://badnorth.wikidot.com/