A relaxing cosmic physics puzzle.
Drop cosmic bodies into the well, watch them collide and settle, and merge two of a kind into the next tier — from a mote of Stardust all the way up to a blazing Neutron Star. Build a universe with one thumb.
Drop cosmic bodies into the well and watch them collide, roll and settle. Two of a kind fuse into the next tier: Stardust → Asteroid → Comet → Moon → Planet… all the way up to the legendary Neutron Star.
Time your drops, trigger chain reactions for big multipliers, hit a five-chain to enter Fever, and fuse two Neutron Stars to detonate a SUPERNOVA that clears almost the whole field in a single, share-worthy flash.
A handcrafted physics engine drives every bounce, roll and collision at a buttery 120 Hz — no two runs ever feel the same.
A long, guided campaign or an endless score-chase — both running on the same satisfying physics, with four difficulty levels from Easy to Inferno.
Journey across a star map of 200+ handcrafted levels and an endless tail beyond — every level its own goal, constraint and 1–3 stars to earn.
The pure, original mode: keep merging, survive, and push for a new high score for as long as you can hold the board.
Stack chain reactions for escalating multipliers, hit a five-chain to enter Fever (×2), and collapse two Neutron Stars into a screen-clearing Supernova.
No game engine — a bespoke 2D solver written in pure Dart. Every collision, the "merge-pop" shockwave and the storms are simulated, not scripted.
Fully offline. No account, no sign-up, no clutter. One-handed portrait controls, soothing cosmic visuals, satisfying haptics and sound.
Discover every cosmic body in the Codex, unlock face accessories and atmospheric color palettes that turn each run into its own little world.
Wind gusts, low gravity, gravity wells, bumpers and moving gates keep the challenge fresh while the cosmos keeps you calm.
From a calm, no-timer Easy to a frantic Inferno with a one-second drop clock and a red-hot board — set the pace that suits you.
Hidden cosmic abilities are sealed inside the Odyssey. Beat the milestone levels to unlock them, one by one — what they do, you'll discover when you earn them.
Wind, low gravity and gravity wells — environmental forces, fully simulated by the in-house physics engine.
Free on iOS and Android. Start your cosmic chain reaction today.