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How to play Terrarium Nebula
Your own protoplanetary disk. Dust becomes planets while you sleep.
How to play
Sign in and you get a disk of dust. It accretes on its own, day and night, tab open or closed — a fresh disk condenses its first world in about three hours and slows as the dust runs down.
Stir the disk to shove the accretion along by hand. You hold up to three stir charges and regenerate one per hour.
Planets get computer-issued names. Pointless Plus buys naming rights, so your gas giant can be called Gerald.
At 30 worlds the disk is picked clean — nothing more will condense. That's what the Supernova button is for: blow it up, keep the lifetime record, and start over accreting 15% faster, permanently, per supernova.
Scoring
- Your score is lifetime planets formed, across every disk you've ever detonated — higher is better, and supernovas never subtract from it.
- The leaderboard is called Deepest Skies, which is the most poetic thing about a game you check twice a day.
Tips
- Stirs regenerate hourly and cap at three, so idle charges are wasted charges — spend them when you visit.
- Supernova the moment the disk matures. A full disk earns nothing; a fresh one with a bigger accretion bonus earns planets.
- An emptied disk isn't dead — dust drifts back in slowly, and existing planets occasionally sweep up a little extra and grow.
Frequently asked questions
Do I have to keep the page open?
No. That's the whole game. The dust does not know about your tab.
Does going supernova reset my score?
No — the lifetime count survives every explosion. You lose the current planets and their names, which is why you name them things you can bear to lose.