0
yr
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View in 3D ›
Save
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≡
ACCRETION
a game about growing solar systems
Sandbox
form whole systems — Normal & God Mode
Planet Creator
design a single world by hand ·
soon
Gallery
your archive of individual planets
Resume
pick up where you left off
Saves
whole systems — save, load, export
Settings
Gallery
saved planets — each a portable JSON world
Import .json
No saved planets yet. Open a body, tap
Save
, and it lands here.
Saves
whole systems — orbital state, clock and RNG
Save current system
Import .json
No saved systems yet.
Save current system
keeps the whole run — every body, the clock and the RNG — so it resumes exactly.
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Export JSON
Delete
Menu
Main menu
Sandbox · Planet Creator · Gallery
New system
star · nebula · seed
View in 3D
select a body first
Settings
3D quality · system view · rebuild
Settings
Star
Nebula
disc
cloud collapse
solid mass
2k
4k
8k
⚄
Integration
fine
fast
rebuild system
3D planet quality
‹ System
hue
0
warmth
0
saturation
1.00
reset
Auto
Auto
moons
0
sandbox
—
drag · pinch · tap a moon
drag to look · pinch to zoom · Q to leave
rust wasm · 128235 B · 2026-09-04 01:34:39Z