ACID slot: RTP and max win
ACID is a high-volatility slot by BABA on Stake Engine, released 29 Jul 2026. Its base game returns 96.70%, above the median Engine slot (96.02%) and higher than 86% of them. The top payout is 25,000× the bet, bigger than 81% of Engine slots; from a base spin it lands about once every 2,000,000 spins. It has 2 bonus buys priced at 100× to 500× the bet; the best returns 96.70%, so each buy costs 3.30× the bet on average over the long run. It is the No. 3455 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% | 25,000× | 1 in 2,000,000 | 1 in 18 | 1 in 39 | 0.03× base | Simulate |
| Hunt | Boosted spin | 3.00× | 96.70% | 25,000× | 1 in 666,667 | 1 in 15 | 1 in 77 | 0.10× base | Simulate |
| Hunt Plus | Boosted spin | 10× | 96.70% | 25,000× | 1 in 200,000 | 1 in 15 | 1 in 45 | 0.33× base | Simulate |
| Bonus | Bonus buy | 100× | 96.70% | 25,000× | 1 in 12,927 | – | 1 in 4.67 | 3.30× base | Simulate |
| Super Bonus | Bonus buy | 500× | 96.70% | 25,000× | 1 in 1,616 | – | 1 in 4.48 | 16.50× 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 | |
|---|---|---|
| v10 | 96.700% | Active |
Frequently asked
What is the RTP of ACID?
Base spins return 96.70% of the amount wagered over the long run, from the published outcome table for version 10. All 2 of its bonus buys return 96.70%.
What is the max win in ACID and how likely is it?
The top payout is 25,000× the base bet. On a base spin it lands 1 in 2,000,000 spins. In the Bonus buy (100×) 25,000× lands 1 in 12,927 buys.
Does ACID have a bonus buy, and what does it cost?
Yes, 2 buy modes. Bonus: 100× the base bet, 96.70% RTP, an expected cost of 3.30× the base bet per buy. Super Bonus: 500× the base bet, 96.70% RTP, an expected cost of 16.50× the base bet per buy.
Is ACID high or low volatility?
High. Its base-mode standard deviation is 41.8× 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.
Slots with similar math to ACID
Matched on volatility, max win, RTP and whether there's a bonus buy. Not on theme.
Candy HexBeast RTP96.70%Max win25,000×Volatility
Forest ElfGolos Games RTP96.70%Max win25,000×Volatility
Piggy ChristmasCrash Galaxy RTP96.70%Max win25,000×Volatility
Lucha SupreamTMA Gaming RTP96.70%Max win25,000×Volatility
Frenzy 2Partyhat Play RTP96.70%Max win25,000×Volatility
Divine AngelDivine Studios RTP96.70%Max win25,000×Volatility