
CIWS “Zubochistka”
Front line
The bullet punches through several roaches in a row, and one shot in every few is heavy. Its weak spot is a single target: without a dense column the pierce goes to waste.
Work order #0417 · Site: kitchen · Threat level: high
Shellcrushers, a horde tower defense gameTens of thousands of roaches pour in at once. Meet them with six turrets, upgrade trees as deep as an RPG and maps that are never the same twice.
01The Office
The Shellcrushers are an elite squad of small aliens who already lost their home world to the swarm. Now the roaches on Earth are waking up, and the Extermination Service sends crews in before the humans notice. Clear the site, collect the biomass, file the report in triplicate.
02HQ howitzer
This is the HQ howitzer from the game. Click the floor and it lobs a shell at that spot, and the blast works the way it does in battle. The roaches are heading for the bunker, so don't let them reach it. Shells here are free: accounting will write them off as a drill.
03Arsenal
Each turret can take an ascendancy that changes how it fights: shells that punch through a whole line, rockets that leave a poison cloud, toothpicks that set the crowd on fire.

Front line
The bullet punches through several roaches in a row, and one shot in every few is heavy. Its weak spot is a single target: without a dense column the pierce goes to waste.

Against crowds
The shell bursts in a forward cone, not a circle, so you place the cannon with the stream running along the cone. It hits rarely but hard: good against a crowd, weak against a lone roach.

Long range
The rocket climbs and drops on the target after its flight. It can't hit anything close, that's the dead zone. The blast reaches groups a straight shot can't.
Flamethrower
Clearance issued on release day
Tesla coil
Clearance issued on release day
Railgun
Clearance issued on release day

Every turret has its own big tree of upgrades with branches and builds to plan. Between runs, spend what you scrape off the roaches and shape each turret your way.
04Field recordings
05Sites
06Map contest
We're opening the map editor to everyone. Pick any of the 115 maps in the game, from the first kitchen to sewer level 100, and make your own version. The community votes in Discord, and every winning map goes into the game with its author's Steam name engraved in the corner.
Type /maps in our Discord. The bot asks for your Steam name and sends you a private link to your map journal.
One map or all 115, it's up to you. Roll seeds, reshape the ground with a brush, save drafts and send the ones you like.
Each map gets a poll in Discord, and the selection board is the whole server. The winner ships in the game with your name on it. If nobody wins a slot, the original map stays.
07What's next
Open since November 3. Wishlists help the game reach more players.
Sign up in Discord with /playtest.
Your map, your Steam name, in the game.
November 27, 2026 on Steam.
08Community
09Press and creators
The press kit has logos, screenshots, capsule art and a fact sheet. For anything else, email us. The press office answers faster than accounting.