Spirebreak. Build your tower.
Survive 30 waves.
Spirebreak is a single-player tower roguelite. Your weapons aim and fire. You choose what to buy, what to combine and when to spend your Scrap.
In development
Compare three builds.
Switch builds. See the hardware change.
Foundation
A single Autocannon. The starting point for a new machine.
- Autocannon
- Starting chassis
Fortified
Three weapon families, with armor and shields to keep them firing.
- Autocannon
- Heavy Cannon
- Arc Coil
Ascendant
An expanded chassis carrying six independent copies and Tier III mutations.
- Six weapon copies
- Tier III mutations
Staged builds · Oct 4, 2026. Chassis appearance is separate from Spire difficulty.
Defense, economy & tradeoffs
Three bosses.
Different answers.
- Wave10
Gate Warden
Interrupt its charged attack.
- Wave20
Forge Tyrant
Reach it, or survive the barrage.
- Wave30
Fractured Crown
Handle reinforcements and the boss.
Choose the next challenge.
Choose a World Contract for each chapter and Swarm or Siege fronts after Waves 10 and 20. After your first victory, climb Spire 1–20 or combine up to three Mutators.
Mutator runs keep records, but do not unlock the next Spire.
Explore the run choicesFrom the workshop.
Content reviewed . Public ranked play is not open.