Twin Charge slot: RTP and max win
Twin Charge is a low-volatility slot by Nitro Gaming on Stake Engine, released 22 Sep 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 25,000,053 spins. It has 5 bonus buys priced at 100× to 1,000× 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. 1661 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 25,000,053 | 1 in 2.49 | 1 in 47 | 0.03× base | Simulate |
| Ante | Boosted spin | 5.00× | 96.70% | 25,000× | 1 in 25,000,022 | 1 in 2.31 | 1 in 16 | 0.17× base | Simulate |
| Bonus | Bonus buy | 100× | 96.70% | 25,000× | 1 in 25,000,188 | – | 1 in 3.64 | 3.30× base | Simulate |
| Super Bonus | Bonus buy | 200× | 96.70% | 25,000× | 1 in 25,000,202 | every round | 1 in 2.31 | 6.60× base | Simulate |
| Feature Spins | Bonus buy | 400× | 96.70% | 25,000× | 1 in 25,000,003 | every round | 1 in 2.81 | 13.20× base | Simulate |
| All In | Bonus buy | 500× | 96.70% | 25,000× | 1 in 25,001,297 | 1 in 1.09 | 1 in 6.67 | 16.50× base | Simulate |
| Death | Bonus buy | 1,000× | 96.70% | 25,000× | 1 in 25,000,273 | every round | 1 in 2.78 | 33.00× base | Simulate |
Work out the cost of Twin Charge 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 | |
|---|---|---|
| v10 | 96.700% | Active |
Frequently asked
What is the RTP of Twin Charge?
Base spins return 96.70% of the amount wagered over the long run, from the published outcome table for version 10. All 5 of its bonus buys return 96.70%.
What is the max win in Twin Charge and how likely is it?
The top payout is 25,000× the base bet. On a base spin it lands 1 in 25,000,053 spins. In the Bonus buy (100×) 25,000× lands 1 in 25,000,188 buys.
Does Twin Charge have a bonus buy, and what does it cost?
Yes, 5 buy modes. Bonus: 100× the base bet, 96.70% RTP, an expected cost of 3.30× the base bet per buy. Super Bonus: 200× the base bet, 96.70% RTP, an expected cost of 6.60× the base bet per buy. Feature Spins: 400× the base bet, 96.70% RTP, an expected cost of 13.20× the base bet per buy. All In: 500× the base bet, 96.70% RTP, an expected cost of 16.50× the base bet per buy. Death: 1,000× the base bet, 96.70% RTP, an expected cost of 33.00× the base bet per buy.
Is Twin Charge high or low volatility?
Low. Its base-mode standard deviation is 12.3× 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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