Apeollo 21 slot: RTP and max win
Apeollo 21 is a high-volatility slot by Paco 21 on Stake Engine, released 31 Oct 2026. Its base game returns 96.70%, above the median Engine slot (96.02%) and higher than 86% of them. The top payout is 100,000× the bet, bigger than 100% of Engine slots; from a base spin it lands about once every 8,333,333 spins. It has 5 bonus buys priced at 100× to 500× the bet; the best returns 96.70%, so each buy costs 3.30× the bet on average over the long run. It is the No. 901 most played Engine slot over the last 30 days.
Every mode, side by side
Costs are multiples of the base bet. Odds come from the published outcome table for v6. "Returns the cost" counts rounds that pay back at least what the mode cost. Expected cost is cost × (1 − RTP): the average amount lost per round over the long run.
| Mode | Type | Cost | RTP | Max win | Max win odds | Pays anything | Returns the cost | Expected cost per round | |
|---|---|---|---|---|---|---|---|---|---|
| Base | Base spin | 1.00× | 96.70% | 100,000× | 1 in 8,333,333 | 1 in 1.80 | 1 in 8.63 | 0.03× base | Simulate |
| Extra Chance | Boosted spin | 5.00× | 96.70% | 100,000× | 1 in 185,000 | 1 in 1.77 | 1 in 24 | 0.17× base | Simulate |
| Super Bonus | Bonus buy | 100× | 96.70% | 100,000× | 1 in 4,000 | – | 1 in 12 | 3.30× base | Simulate |
| Warp Spins | Bonus buy | 200× | 96.70% | 100,000× | 1 in 2,300 | 1 in 1.11 | 1 in 8.85 | 6.60× base | Simulate |
| No Bs | Bonus buy | 350× | 96.70% | 100,000× | 1 in 2,300 | 1 in 9.08 | 1 in 9.08 | 11.55× base | Simulate |
| Mystery Bonus | Bonus buy | 460× | 96.70% | 100,000× | 1 in 2,300 | 1 in 1.67 | 1 in 7.54 | 15.18× base | Simulate |
| Max Hunt | Bonus buy | 500× | 96.70% | 100,000× | 1 in 2,300 | 1 in 1.36 | 1 in 3.99 | 16.50× base | Simulate |
Version history
Base-mode RTP per published math version. Older versions stay public in the fairness API, so changes can be checked.
| Version | Base RTP | |
|---|---|---|
| v6 | 96.700% | Active |
Frequently asked
What is the RTP of Apeollo 21?
Base spins return 96.70% of the amount wagered over the long run, from the published outcome table for version 6. All 5 of its bonus buys return 96.70%.
What is the max win in Apeollo 21 and how likely is it?
The top payout is 100,000× the base bet. On a base spin it lands 1 in 8,333,333 spins. In the Super Bonus buy (100×) 100,000× lands 1 in 4,000 buys.
Does Apeollo 21 have a bonus buy, and what does it cost?
Yes, 5 buy modes. Super Bonus: 100× the base bet, 96.70% RTP, an expected cost of 3.30× the base bet per buy. Warp Spins: 200× the base bet, 96.70% RTP, an expected cost of 6.60× the base bet per buy. No Bs: 350× the base bet, 96.70% RTP, an expected cost of 11.55× the base bet per buy. Mystery Bonus: 460× the base bet, 96.70% RTP, an expected cost of 15.18× the base bet per buy. Max Hunt: 500× the base bet, 96.70% RTP, an expected cost of 16.50× the base bet per buy.
Is Apeollo 21 high or low volatility?
High. Its base-mode standard deviation is 48.4× the bet, which puts it in the highest third of Engine games. What volatility means.
Can I check that a result was fair?
Yes. Engine games use provably fair seeds. Once your server seed is revealed you can replay any round against the published outcome table. See how to verify a result.
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