Tower Tanks builds screen-high co-op chaos on Steam

War Mouth Games, a Boston-based indie studio, has announced Tower Tanks, a co-op vehicle-combat roguelike that hands up to four players a pile of parts and one very bad idea. The studio revealed the game with a Steam page and a reveal trailer on 2 October, and it is War Mouth's first commercial release.

Build it, crew it, watch it explode

The loop is building first, shooting second. Teams bolt their war machine together piece by piece, adding rooms, weapons, defences, rockets, refrigerators and battlestations before rolling out to fight tanks of a roughly comparable size. The studio names Ultimate Chicken Horse, Besiege and Lovers in a Dangerous Spacetime as the games that shaped its thinking.

Once the shooting starts, everyone has a job. You aim the cannons, steer the throttle, repair damage and keep the boilers hot, sprinting around inside the machine you built while it takes hits. The tank doubles as the level, and War Mouth is leaning hard into that: builds climb towards the top of the screen, and the studio's own advice is that the taller your tank, the bigger the boom.

Roguelike campaigns, big bosses and questionable outfits

Runs are roguelike campaigns rather than one-off brawls. Crews complete objectives, push into new areas and take down huge bosses to unlock an expanding arsenal of weapons, tools, stations and what the studio calls OSHA-approved outfits. War Mouth says every run uncovers new challenges, and that it is still adding widgets, stations, roles, environments and hazards, including a dedicated co-op Campaign Mode.

Platforms, price and release date

Tower Tanks is a PC game sold on Steam. Its store page currently lists a Q2 2027 window under Early Access, with single-player, online co-op and shared or split-screen co-op for up to four players. There is no price yet, and wishlisting and playtest sign-ups are open.

Our opinion

Lovers in a Dangerous Spacetime showed how good it feels to share one vehicle under pressure, and Besiege showed how satisfying it is to bolt nonsense together. Tower Tanks welds the two together, which makes the machine you depend on the same machine you keep having to fix, and turns every layout decision into an argument about who has to run up three floors mid-firefight with a spanner.

That is a genuinely different tension from the usual co-op roguelike, and the studio's affection for absurd maintenance, refrigerators included, suggests it understands where the comedy actually lives. The risk is legibility: a skyscraper on treads, crewed by four people on one display, is a lot to read while shells are landing. Early Access is the right place to find out whether the chaos stays funny or just gets loud.