How the letters were chosen
S and A on the towers board are the published efficiency picks plus Business Dummy, which has no DPS and still belongs at the top because it prints Cash. B means the tower is correct in one job and wasteful as a default buy. The Titans board uses the same letters for endgame value, not for a new account. Shop removals on September 7, 2026 are called out on the row. Towers without a published DPS or a clear job are in the catalog and not on this board.
S tier
Player decision Buy it once you are level 15 and already have a Cash generator. It is a front-line minigun, not a day-one tower.
Player decision Take it when swarms reach your line and you can stand a level 30 gate. The kick is the reason to buy it over a pure damage tower.
Player decision Buy it immediately after BlockDummy. Place it off the lane and upgrade it instead of filling the map with weak guns.
A tier
Player decision The best early efficiency you can buy on day one if you want a melee body on the corner.
Player decision Keep a few at level 3 or higher whenever a mode sends hidden units. Do not expect it to be your damage carry.
Player decision Buy it before stealth-heavy modes. Pair it with non-fire DPS for Lava Noobs until it is maxed.
Player decision First heavy Brick purchase after Business Dummy. Keep it off the front line so it is not the thing that dies.
Player decision Buy it when your front line dies to chip damage, not when you still lack damage.
Player decision Choose it over Large ScaleDummy when the problem is grouped waves rather than a single tank.
B tier
Player decision First Brick purchase on a new account.
Player decision Park it behind a choke so the slow shots still connect. Skip it if you need swarm clear.
Player decision Only after you have a cluster worth buffing. Spread-out early boards waste it.
Player decision Place it in the middle of your best DPS, not at the back of an empty lane.
Player decision Buy it for a lane that kills squishier towers, not because the efficiency number looks good.