Once Upon a Dime
Theoretical RTP: 97.4% · Volatility: ⚡⚡⚡
Best RTP right now
Play Once Upon a Dime at Mrgreen
24h RTP: 79.8% — -0.2% vs theoretical
Once Upon a Dime across casinos
Live RTP at each casino offering this slot — sorted by 24h payout
Mrgreen
Theor. 97.4%
Mr Green – Sign Up Bonus: 200% up to €/$100 + 50 Spins
How this tracker works
Our engine scans payout data for Once Upon a Dime across every casino that offers it, updating every 60 seconds. The 1-minute RTP shows the most recent payout window — useful for spotting short-term hot streaks. The 24-hour RTP gives a broader picture of how the slot has been performing across the day.
When a casino's live RTP is above the theoretical RTP (80%) the slot is classified as Hot — it is returning more to players than expected. Below theoretical it is Cold.