Cosmic physics playground · real N-body gravity

MOONFLICK

It's billiards, except the balls are planets and gravity matters.

Wishlist on Steam — coming soon

Two giant glowing hands cupping a bright star while a blue world and two rocky planets trace their orbits around it; the level's objective banner sits at the top of the frame.

The solar system is your table. The planets are your balls. Gravity plays for both sides. Reach in with your own two hands, flick a world, and watch the consequences ripple through the whole system: mergers, splits, slingshots, and the occasional spectacular catastrophe you will absolutely claim was the plan.

What you do

One verb, repeated: pick a body, flick it, and let gravity resolve the consequences.

  1. Pick a world

    Fly through the system while time runs fast-forward and the orbits visibly evolve, or hand the camera to the cinematic director and let it find the shot. Click any body you're allowed to touch to lock on.

  2. Aim the flick

    Your hand closes around the locked world. Pull back to charge, read the trajectory preview, and release. The same flick nudges a star imperceptibly and hurls a moon clean across the system.

  3. Let gravity resolve

    Every body pulls on every other, deterministically. Two worlds that meet gently merge. A hard glancing hit shatters the smaller one into hot rubble that cools, settles, and sometimes rains down on its neighbours.

Play billiards with planets

Cosmic Billiards is the campaign: 60 authored levels across 13 chapters, each a small system with an objective sheet and no shot limit. Every puzzle is authored, every solution earned, and when three bodies conspire to do something nobody predicted, that's not a bug. That's the three-body problem. It's famous.

And there's more

Three more ways to play with an entire solar system. Same physics, same hands, very different jobs.

Cosmic Survival: a striped blue organism seen from behind wraps a green moon with glowing tendrils; the objective reads Grow.

Cosmic Survival

Start as a mote of matter and eat your way up. Every tap of thrust costs mass, every smaller body you touch is lunch, and anything larger is trying to eat you back. Win, and you're no longer in the solar system. You are the solar system.

Cosmic Evolution: a large blue cell in a teal pool surrounded by smaller green, magenta, and yellow cells, with a scan prompt and a mass and organ readout.

Cosmic Evolution in development

A roguelite lifecycle. Begin as a microbe in a pool, scan for what's smaller than you, harvest minerals, and grow organs through the evolution web. Launch off your planet, leave your home system, and end as a black hole of your own making. Seeded runs, a genome archive, and a death card that tells you exactly what got you.

Idle Universe: a bloom-lit star with planets fanned along their fading orbit trails against a nebula-streaked starfield.

Idle Universe

Stop playing and just watch. A living orrery where an autonomous civilization grows from steam and steel to satellites, probes, asteroid mines, and a Dyson swarm, then launches an ark for another star. Follow a craft, pick the song, or arm the flick and change their fate.

Under the hood

Availability

Platforms

  • Windows
  • macOS
  • GNU/Linux
  • Steam Deck

Coming to Steam. Wishlisting opens with the store page. Android and iOS builds are in development.

System requirements

Coming soon — the full spec sheet lands alongside the Steam store page.

Press & streamers

Covering the game? The fact sheet, downloadable logos, capsule art, and screenshots, and our streaming policy are all on the press page.

Open the press kit