Double Down slot: RTP and max win
Double Down is a medium-volatility slot by Donde Studios on Stake Engine, released 26 Aug 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 6,251,061 spins. It has 4 bonus buys priced at 25× to 250× the bet; the best returns 96.70%, so each buy costs 0.83× the bet on average over the long run. It is the No. 2131 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 v13. "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 6,251,061 | 1 in 3.06 | 1 in 15 | 0.03× base | Simulate |
| Bonus Hunt | Boosted spin | 3.00× | 96.70% | 25,000× | 1 in 2,083,540 | 1 in 2.59 | 1 in 16 | 0.10× base | Simulate |
| Split | Bonus buy | 25× | 96.70% | 25,000× | 1 in 100,001 | 1 in 1.33 | 1 in 31 | 0.83× base | Simulate |
| Perfect Pair | Bonus buy | 80× | 96.70% | 25,000× | 1 in 7,813 | – | 1 in 23 | 2.64× base | Simulate |
| Double Down | Bonus buy | 120× | 96.70% | 25,000× | 1 in 5,208 | 1 in 1.33 | 1 in 14 | 3.96× base | Simulate |
| Straight Flush | Bonus buy | 250× | 96.70% | 25,000× | 1 in 3,571 | – | 1 in 8.23 | 8.25× base | Simulate |
Work out the cost of Double Down 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 | |
|---|---|---|
| v13 | 96.700% | Active |
| v11 | 96.700% |
Frequently asked
What is the RTP of Double Down?
Base spins return 96.70% of the amount wagered over the long run, from the published outcome table for version 13. All 4 of its bonus buys return 96.70%.
What is the max win in Double Down and how likely is it?
The top payout is 25,000× the base bet. On a base spin it lands 1 in 6,251,061 spins. In the Split buy (25×) 25,000× lands 1 in 100,001 buys.
Does Double Down have a bonus buy, and what does it cost?
Yes, 4 buy modes. Split: 25× the base bet, 96.70% RTP, an expected cost of 0.83× the base bet per buy. Perfect Pair: 80× the base bet, 96.70% RTP, an expected cost of 2.64× the base bet per buy. Double Down: 120× the base bet, 96.70% RTP, an expected cost of 3.96× the base bet per buy. Straight Flush: 250× the base bet, 96.70% RTP, an expected cost of 8.25× the base bet per buy.
Is Double Down high or low volatility?
Medium. Its base-mode standard deviation is 19.3× the bet, which puts it in the middle 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 Double Down
Matched on volatility, max win, RTP and whether there's a bonus buy. Not on theme.
Filler RoyaleGolos Games RTP96.70%Max win25,000×Volatility
Rust RookREDAGE RTP96.70%Max win25,000×Volatility
Night Bazaar 2099Kvist Games RTP96.70%Max win25,000×Volatility
Croco WildVelvet Studios RTP96.70%Max win25,000×Volatility
M-A-G-I-CNaughty Reels Studios RTP96.70%Max win25,000×Volatility
Dumpster KingsZENDIT STUDIOS RTP96.70%Max win25,000×Volatility