Planned Release Date: November 2026

About This Game

The First Missile

A city-killer asteroid is falling toward your city, and all you have is one missile silo. Destroy the incoming threats, earn money and upgrade your firepower. Your defense starts in the sky ten kilometres above the city.

Turn the Cosmos into Weapons

Rooftops, the Moon, the Sun, Jupiter, a black hole… all 50 celestial bodies in the game can be converted into weapons, each with its own attack. The Sun is wrapped in a Dyson sphere, and the black hole at the galactic centre becomes an engine.

More Firepower

Every chapter unlocks a main weapon with a whole new attack: missile salvos, kinetic rods, gravity wells, pulsar beacons, quasar jets… with up to 48 turrets firing alongside.

Ten Ultimates

Droplet

Fourier Decomposition: everything the pen tip passes detonates.

Mandelbrot

Ten Bosses

Every chapter has a giant threat: a city-killer asteroid, a magnetar, an alien megastructure warship, a cosmic catastrophe core… each with its own skill and energy layer. Interrupt it while it charges, and destroy it before time runs out.

Ten Scales

City → Earth → Inner Solar System → Outer Solar System → Oort Cloud → Stellar Neighbourhood → Milky Way → Supercluster → Observable Universe → The Brane. Finish a chapter and your defense jumps with you to the next scale.

Your Pace

• Pause anytime, ×1 / ×2 speed
• Autosave with Steam Cloud
• Steam Achievements
• 11 languages, including English and Simplified Chinese
• Accessibility: turn off camera motion, reduce effects, separate music and effects volume
• Fully playable with just the mouse

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Generative AI was used to assist with writing and translating store descriptions. The game does not use generative AI during gameplay or generate AI content in real time.