The game takes a couple of cues from roguelikes: you are only given one life to traverse the game’s seven environments, and each layout is randomized. You goal is to reach the exit in each room and then take down the boss for each level. Tower of Guns has gun modifications to enhance your weapon that can be purchased at shops; you can also unlock perks and collect badges to give small bonuses. Items dropped by enemies can level up your gun, heal, or recharge items. The enemies are plentiful, and the features overall produce a challenging game.