Final Protocol slot: RTP and max win
Final Protocol is a high-volatility slot by Activ on Stake Engine, released 14 Sep 2026. Its base game returns 96.70%, above the median Engine slot (96.02%) and higher than 86% of them. The top payout is 40,000× the bet, bigger than 84% of Engine slots; from a base spin it lands about once every 1,874,156 spins. It has 7 bonus buys priced at 200× to 1,500× the bet; the best returns 96.70%, so each buy costs 6.60× the bet on average over the long run. It is the No. 4847 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 v10. "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% | 40,000× | 1 in 1,874,156 | 1 in 2.78 | 1 in 14 | 0.03× base | Simulate |
| Bonus | Bonus buy | 200× | 96.70% | 40,000× | 1 in 100,000 | – | 1 in 4.00 | 6.60× base | Simulate |
| Astral Rain | Bonus buy | 350× | 96.70% | 40,000× | 1 in 100,000 | 1 in 1.02 | 1 in 4.00 | 11.55× base | Simulate |
| Super Bonus | Bonus buy | 400× | 96.70% | 40,000× | 1 in 100,000 | – | 1 in 4.00 | 13.20× base | Simulate |
| Mystery Bonus | Bonus buy | 500× | 96.70% | 40,000× | 1 in 100,000 | – | 1 in 5.44 | 16.50× base | Simulate |
| Supernova | Bonus buy | 500× | 96.70% | 40,000× | 1 in 100,000 | 1 in 1.02 | 1 in 4.00 | 16.50× base | Simulate |
| Epic Bonus | Bonus buy | 800× | 96.70% | 40,000× | 1 in 100,000 | – | 1 in 4.00 | 26.40× base | Simulate |
| Hidden Bonus | Bonus buy | 1,500× | 96.70% | 40,000× | 1 in 100,001 | – | 1 in 4.00 | 49.50× base | Simulate |
Work out the cost of Final Protocol bonus buys at your bet size
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 | |
|---|---|---|
| v10 | 96.700% | Active |
Frequently asked
What is the RTP of Final Protocol?
Base spins return 96.70% of the amount wagered over the long run, from the published outcome table for version 10. All 7 of its bonus buys return 96.70%.
What is the max win in Final Protocol and how likely is it?
The top payout is 40,000× the base bet. On a base spin it lands 1 in 1,874,156 spins. In the Bonus buy (200×) 40,000× lands 1 in 100,000 buys.
Does Final Protocol have a bonus buy, and what does it cost?
Yes, 7 buy modes. Bonus: 200× the base bet, 96.70% RTP, an expected cost of 6.60× the base bet per buy. Astral Rain: 350× the base bet, 96.70% RTP, an expected cost of 11.55× the base bet per buy. Super Bonus: 400× the base bet, 96.70% RTP, an expected cost of 13.20× the base bet per buy. Mystery Bonus: 500× the base bet, 96.70% RTP, an expected cost of 16.50× the base bet per buy. Supernova: 500× the base bet, 96.70% RTP, an expected cost of 16.50× the base bet per buy. Epic Bonus: 800× the base bet, 96.70% RTP, an expected cost of 26.40× the base bet per buy. Hidden Bonus: 1,500× the base bet, 96.70% RTP, an expected cost of 49.50× the base bet per buy.
Is Final Protocol high or low volatility?
High. Its base-mode standard deviation is 45.5× 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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