Build towers. Protect the Heart.
A bright tower defense and base builder on a white space station. Block the path, swing the gates and outlast the Static.
Free. No ads. Nothing to download.
Pick a crew of little robots
Eight towers, each with one job. Drop them next to the path, upgrade the ones doing the work, and give each a special skill when it maxes out.
Every robot, every Static and every sound is drawn and played live by the game’s own code. The boards on this page are the real game, running right now.
BlasterShoots fast. Hits ground and flying enemies.
BomberLobs bombs that hit a whole group. Can’t hit flyers.
ChillerSlows down enemies near it.
LaserFires a laser through a whole line of enemies.
ZapperZaps one enemy, then jumps to the ones nearby.
SeekerDarts that chase flying enemies. Only hits flyers.
CannonOne giant blast from far away. Can’t hit flyers.
BoosterMakes the towers around it stronger.
The Static come in waves, and every kind wants something different from your maze.
The maze is the weapon
Blocks never shoot. They make the Static walk farther, past your towers, for longer. Same three towers on both boards. One has four rows of Blocks.
- The path can never be sealed. Build anywhere; there is always a way through.
- Watch what is in range, not just how long the path is. A long road that skips your towers loses.
Swing a gate and the whole path moves
A Gate flips the whole route with one tap. Watch the path length jump as this one swings open and shut.
- Pressure Plates flip Gates when the Static step on them, so a crowd splits itself.
- Sensors, Timers and Counters pick out flyers, add a delay or count every fifth walker.
- Wren’s Puzzles and the Sandbox teach each part, then let you build anything on a big board.
Bosses, mutations and a story worth finishing
MotherGrey glitchy things called the Static are coming. They want to reach the Heart.
From wave 15 the Static change shape every ten waves: Swift, Plated, Shielded or Hungry. A build that worked last time gets tested again.
- Five chapters with Mother, who looks after the station, and Wren, who helps her out.
- Bosses like the Hollow King and the Copier, and the Choir waiting at wave 40.
- An ending you choose, once you learn what the Static really are.
Build a base that works while you’re away
Collectors make Energy and Matter even when the game is closed. Spend it on research that makes every run stronger.
- A Static storm hits every 8 hours, even when you’re away. Hold it to earn Data.
- Open the gate and let a trickle of Static in for a little extra Energy.
- Daily Map: the same waves for everyone, every day.
The Deep never ends
Past wave 60 the waves keep coming. Health climbs a little every wave, Power has no ceiling, Mega waves hit every 25, and anything left alive too long lifts off and flies for the Heart.
Your progress follows you
Sign in with a code sent to your email, no password, and your save is kept safe in the cloud. Start on your phone and carry on at your computer.
Made for all ages: no ads, no chat, and no account needed to play. Sign in whenever you like. iPhone app coming soon.