The Abyss slot: RTP and max win
The Abyss is a low-volatility slot by Spark Studios on Stake Engine, released 16 Jul 2026. Its base game returns 96.00%, below the median Engine slot (96.02%). The top payout is 10,000× the bet; from a base spin it lands about once every 14,992,513 spins. It has 5 bonus buys priced at 80× to 500× the bet; the best returns 96.00%, so each buy costs 3.20× the bet on average over the long run. It is the No. 5432 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 v5. "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% | 10,000× | 1 in 14,992,513 | 1 in 1.39 | 1 in 2.77 | 0.04× base | Simulate |
| Deep Dive | Boosted spin | 3.00× | 96.00% | 10,000× | 1 in 15,015,027 | 1 in 1.40 | 1 in 15 | 0.12× base | Simulate |
| The Depths | Bonus buy | 80× | 96.00% | 10,000× | 1 in 15,006,507 | every round | 1 in 5.28 | 3.20× base | Simulate |
| Spark Spins | Bonus buy | 200× | 96.00% | 10,000× | 1 in 15,016,947 | every round | 1 in 4.92 | 8.00× base | Simulate |
| Mystery | Bonus buy | 250× | 96.00% | 10,000× | 1 in 14,981,449 | every round | 1 in 3.86 | 10.00× base | Simulate |
| The Trench | Bonus buy | 250× | 96.00% | 10,000× | 1 in 14,981,991 | every round | 1 in 4.39 | 10.00× base | Simulate |
| The Abyss | Bonus buy | 500× | 96.00% | 10,000× | 1 in 15,041,382 | – | 1 in 4.81 | 20.00× 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 | |
|---|---|---|
| v5 | 96.000% | Active |
Frequently asked
What is the RTP of The Abyss?
Base spins return 96.00% of the amount wagered over the long run, from the published outcome table for version 5. All 5 of its bonus buys return 96.00%.
What is the max win in The Abyss and how likely is it?
The top payout is 10,000× the base bet. On a base spin it lands 1 in 14,992,513 spins. In the The Depths buy (80×) 10,000× lands 1 in 15,006,507 buys.
Does The Abyss have a bonus buy, and what does it cost?
Yes, 5 buy modes. The Depths: 80× the base bet, 96.00% RTP, an expected cost of 3.20× the base bet per buy. Spark Spins: 200× the base bet, 96.00% RTP, an expected cost of 8.00× the base bet per buy. Mystery: 250× the base bet, 96.00% RTP, an expected cost of 10.00× the base bet per buy. The Trench: 250× the base bet, 96.00% RTP, an expected cost of 10.00× the base bet per buy. The Abyss: 500× the base bet, 96.00% RTP, an expected cost of 20.00× the base bet per buy.
Is The Abyss high or low volatility?
Low. Its base-mode standard deviation is 6.2× 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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