Primal Roar slot: RTP and max win
Primal Roar is a high-volatility slot by Claudito Games on Stake Engine, released 26 Sep 2026. Its base game returns 95.01%, below the median Engine slot (96.02%). The top payout is 50,000× the bet, bigger than 97% of Engine slots; from a base spin it lands about once every 6,653,832 spins. It has 3 bonus buys priced at 100× to 500× the bet; the best returns 95.00%, so each buy costs 15× the bet on average over the long run.
Every mode, side by side
Costs are multiples of the base bet. Odds come from the published outcome table for v1. "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× | 95.01% | 50,000× | 1 in 6,653,832 | 1 in 10 | 1 in 19 | 0.05× base | Simulate |
| Bonus Boost | Boosted spin | 5.00× | 95.00% | 50,000× | 1 in 204,791 | 1 in 11 | 1 in 20 | 0.25× base | Simulate |
| Super Spins | Bonus buy | 100× | 95.00% | 50,000× | 1 in 21,858 | 1 in 6.80 | 1 in 13 | 5.00× base | Simulate |
| Bonus Game | Bonus buy | 300× | 95.00% | 50,000× | 1 in 41,661 | – | 1 in 3.82 | 15.00× base | Simulate |
| Degen Spins | Bonus buy | 500× | 95.00% | 50,000× | 1 in 24,816 | 1 in 2.37 | 1 in 5.09 | 25.00× base | Simulate |
Work out the cost of Primal Roar 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 | |
|---|---|---|
| v1 | 95.007% | Active |
Frequently asked
What is the RTP of Primal Roar?
Base spins return 95.01% of the amount wagered over the long run, from the published outcome table for version 1. All 3 of its bonus buys return 95.00%.
What is the max win in Primal Roar and how likely is it?
The top payout is 50,000× the base bet. On a base spin it lands 1 in 6,653,832 spins. In the Bonus Game buy (300×) 50,000× lands 1 in 41,661 buys.
Does Primal Roar have a bonus buy, and what does it cost?
Yes, 3 buy modes. Super Spins: 100× the base bet, 95.00% RTP, an expected cost of 5.00× the base bet per buy. Bonus Game: 300× the base bet, 95.00% RTP, an expected cost of 15.00× the base bet per buy. Degen Spins: 500× the base bet, 95.00% RTP, an expected cost of 25.00× the base bet per buy.
Is Primal Roar high or low volatility?
High. Its base-mode standard deviation is 45.0× 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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