You are the commander of the Time Tank, a formidable vehicle that ensures the fight is never truly over, stranded on an alien planet with nothing but your wits, heavy weaponry, and the allies you rescue along the way. Battle through hordes of eldritch monsters to rescue your friends, upgrade your arsenal, and claw your way into the future. Through rescuing your allies and completing their quests, you unlock their tower, a bastion of defense or offense that aids you in all future battles. Through further quests, you unlock unique weapons, such as the railgun and deadly mist, in addition to your tank's trusty automatic turret system. If you're brave enough and give a valiant effort, you may be able to escape this alien planet and venture back home. Don't worry, if the zombies get you, your trust Time Tank has the ability to travel back in time whenever it is put in grave danger; You will simply travel back to the last know safe timeline.