Free
With Ads
About
Hold to grow a planet. Release to forge it. Hold the system steady until the star ignites.
You are the stellabound — the cosmic artisan whose craft is forging star systems out of nothing but gravity and intent.
Press anywhere, hold, and a glowing nucleus forms under your finger. Release to forge. Touching planets shed particles that fall again — into existing worlds, into new tiny ones, or onto a planet long enough to become its moon. Across one hundred sessions the brief deepens.
FEATURES
• 100 session briefs with deepening constraints
• Forge rocky worlds, earth-likes, and gas giants by feel
• Real-time Newtonian gravity, no scripted paths
• Place gravity wells, add moons, destroy and refund
• Particle coalescence: collisions spawn new bodies, sometimes moons
• 20 honors across five categories
• 2 calibration aids earned through play
• Fully playable offline, no account, no cloud, no analytics
Can you hold the system steady tonight?
Contains optional ads.
Show more
What's New in Stellabound
1.0
September 23, 2026






