18+ For entertainment only No real money play No prizes of monetary value No in-app purchases
before the dome opens
Every instrument here is free and runs on stardust. Stardust cannot be bought, sold or exchanged, and there are no prizes of monetary value.
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The games here are for adults only. If gambling or gaming is worrying you or someone close to you, GamCare's free, confidential helpline is open day and night on 0808 8020 133.
close the shutters
Choose how long the instruments stay covered on this device. You can still read every page.
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a note from the hall
In that time you have played 0 rounds, and your stardust has moved by 0. Stardust is only points, but time is real.
A note on storage
Orrery Hall sets no cookies and runs no trackers or adverts. Your age answer and this choice are kept in this browser. Accept, and your stardust and Logbook stay on this device; choose Session only, and they are forgotten when you close the tab. How storage works
10stake
Choose a stake to begin.
Five reels and 243 ways under two moons. Three twin-moon symbols start seven free rounds in which the middle reel is moonlit: wild from top to bottom on every spin.
The quietest board in the hall and the one with the biggest swings. Long stretches of small returns are normal.
Most of what it gives back arrives in free rounds, which come roughly once every hundred-odd spins.
Long-run return is what the game gives back on average over millions of rounds, checked by simulation. Any single evening can land far above or below it.
These are the exact numbers the game uses. Every round is drawn fresh by your browser's secure random number generator, and nothing that happened before changes what happens next.
Returns are multiples of your total stake for each way. Two ways with the same symbol pay twice.
| Symbol | 3 reels | 4 reels | 5 reels |
|---|---|---|---|
 Snowy owl | × 1 | × 2.5 | × 10 |
 Silver fox | × 0.8 | × 2 | × 5 |
 Luna moth | × 0.5 | × 1.5 | × 4 |
 Nightingale | × 0.4 | × 1 | × 3 |
 White moonstone | × 0.15 | × 0.5 | × 1.5 |
 Blue moonstone | × 0.12 | × 0.4 | × 1.2 |
 Grey moonstone | × 0.08 | × 0.3 | × 1 |
Eclipse is wild on reels 2, 3 and 4.
Twin moons: three on reels 1, 3 and 5 return × 1 and start 7 free rounds with a wild middle reel.
