The Goon Cave slot: RTP and max win
The Goon Cave is a low-volatility slot by RtpStudios on Stake Engine, released 9 Aug 2026. Its base game returns 94.00%, below the median Engine slot (96.02%). The top payout is 24,972× the bet, bigger than 60% of Engine slots. It has 3 bonus buys priced at 100× to 300× the bet; the best returns 94.00%, so each buy costs 6.00× the bet on average over the long run. It is the No. 2776 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 v9. "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× | 94.00% | 300× | 1 in 1,859 | 1 in 18 | 1 in 21 | 0.06× base | Simulate |
| Ante | Boosted spin | 2.00× | 94.00% | 600× | 1 in 1,671 | 1 in 15 | 1 in 18 | 0.12× base | Simulate |
| Feature | Boosted spin | 10× | 94.00% | 3,000× | 1 in 999,997 | 1 in 1.59 | 1 in 2.63 | 0.60× base | Simulate |
| Unhinged | Bonus buy | 100× | 94.00% | 24,940× | 1 in 999,993 | 1 in 1.59 | 1 in 3.48 | 6.00× base | Simulate |
| Bonus | Bonus buy | 125× | 94.00% | 24,484× | 1 in 999,986 | 1 in 1.59 | 1 in 3.66 | 7.50× base | Simulate |
| Super | Bonus buy | 300× | 94.00% | 24,972× | 1 in 472,749 | – | 1 in 2.60 | 18.00× base | Simulate |
Work out the cost of The Goon Cave 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 | |
|---|---|---|
| v9 | 94.000% | Active |
Frequently asked
What is the RTP of The Goon Cave?
Base spins return 94.00% of the amount wagered over the long run, from the published outcome table for version 9. All 3 of its bonus buys return 94.00%.
What is the max win in The Goon Cave and how likely is it?
The top payout is 24,972× the base bet. On a base spin the top payout of 300× lands 1 in 1,859 spins. In the Unhinged buy (100×) 24,940× lands 1 in 999,993 buys.
Does The Goon Cave have a bonus buy, and what does it cost?
Yes, 3 buy modes. Unhinged: 100× the base bet, 94.00% RTP, an expected cost of 6.00× the base bet per buy. Bonus: 125× the base bet, 94.00% RTP, an expected cost of 7.50× the base bet per buy. Super: 300× the base bet, 94.00% RTP, an expected cost of 18.00× the base bet per buy.
Is The Goon Cave high or low volatility?
Low. Its base-mode standard deviation is 10.6× the bet, which puts it in the lowest 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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