Gaia's Grotto slot: RTP and max win
Gaia's Grotto is a high-volatility slot by Trifecta on Stake Engine, released 25 Oct 2026. Its base game returns 96.00%, 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 14,000,073 spins. It has 6 bonus buys priced at 40× to 500× the bet; the best returns 96.00%, so each buy costs 1.60× the bet on average over the long run. It is the No. 476 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 v2. "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× | 96.00% | 50,000× | 1 in 14,000,073 | 1 in 4.41 | 1 in 10 | 0.04× base | Simulate |
| Hunt Spins 1 | Boosted spin | 2.00× | 96.00% | 50,000× | 1 in 13,250,012 | 1 in 4.25 | 1 in 17 | 0.08× base | Simulate |
| Extra Chance | Boosted spin | 3.00× | 96.00% | 50,000× | 1 in 12,500,068 | 1 in 4.09 | 1 in 20 | 0.12× base | Simulate |
| Hunt Spins 2 | Boosted spin | 3.00× | 96.00% | 50,000× | 1 in 9,999,999 | 1 in 4.14 | 1 in 21 | 0.12× base | Simulate |
| Hunt Spins 3 | Boosted spin | 4.00× | 96.00% | 50,000× | 1 in 7,000,015 | 1 in 4.04 | 1 in 23 | 0.16× base | Simulate |
| Hunt Spins 4 | Boosted spin | 5.00× | 96.00% | 50,000× | 1 in 4,500,009 | 1 in 3.95 | 1 in 23 | 0.20× base | Simulate |
| Trifecta Spins | Bonus buy | 40× | 96.00% | 50,000× | 1 in 2,500,005 | 1 in 1.36 | 1 in 5.37 | 1.60× base | Simulate |
| Goblin Spin | Bonus buy | 55× | 96.00% | 50,000× | 1 in 6,500,014 | 1 in 1.24 | 1 in 6.62 | 2.20× base | Simulate |
| Enter The Cave | Bonus buy | 100× | 96.00% | 50,000× | 1 in 2,999,997 | – | 1 in 3.58 | 4.00× base | Simulate |
| Buried Fortune | Bonus buy | 250× | 96.00% | 50,000× | 1 in 500,000 | – | 1 in 4.47 | 9.99× base | Simulate |
| Mystery Bonus | Bonus buy | 250× | 96.00% | 50,000× | 1 in 4,000 | 1 in 2.00 | 1 in 7.44 | 9.99× base | Simulate |
| The Depths | Bonus buy | 500× | 96.00% | 50,000× | 1 in 200,000 | – | 1 in 6.84 | 19.98× base | Simulate |
Work out the cost of Gaia's Grotto 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 | |
|---|---|---|
| v2 | 96.003% | Active |
Frequently asked
What is the RTP of Gaia's Grotto?
Base spins return 96.00% of the amount wagered over the long run, from the published outcome table for version 2. All 6 of its bonus buys return 96.00%.
What is the max win in Gaia's Grotto and how likely is it?
The top payout is 50,000× the base bet. On a base spin it lands 1 in 14,000,073 spins. In the Trifecta Spins buy (40×) 50,000× lands 1 in 2,500,005 buys.
Does Gaia's Grotto have a bonus buy, and what does it cost?
Yes, 6 buy modes. Trifecta Spins: 40× the base bet, 96.00% RTP, an expected cost of 1.60× the base bet per buy. Goblin Spin: 55× the base bet, 96.00% RTP, an expected cost of 2.20× the base bet per buy. Enter The Cave: 100× the base bet, 96.00% RTP, an expected cost of 4.00× the base bet per buy. Buried Fortune: 250× the base bet, 96.00% RTP, an expected cost of 9.99× the base bet per buy. Mystery Bonus: 250× the base bet, 96.00% RTP, an expected cost of 9.99× the base bet per buy. The Depths: 500× the base bet, 96.00% RTP, an expected cost of 19.98× the base bet per buy.
Is Gaia's Grotto high or low volatility?
High. Its base-mode standard deviation is 27.3× 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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