RATS!! - Lanza Studios - Co-op Tower Defense Where Up to Four Farmhands Fight a Rat Horde on Foot

Lanza Studios' RATS!! is a co-op tower defense for up to four players, playable solo, in couch co-op, or online via Steam, with building and selling towers during waves and linking them into combos across 10 towers, 19 combos, and 36 upgrades. It spans four worlds, each ending with a crowned rat boss, and is planned for Steam on Windows and macOS, with a free co-op demo at Steam Next Fest in February 2027. A separate 1v1 RAT WARS mode lets players practice against a bot or duel a friend online.