Round Robin slot: RTP and max win
Round Robin is a medium-volatility slot by Paperclip Gaming on Stake Engine, released 18 Aug 2025. Its base game returns 96.01%, below the median Engine slot (96.02%). The top payout is 5,010× the bet; from a base spin it lands about once every 99,999,958 spins. It has 1 bonus buy priced at 100× the bet; the best returns 96.00%, so each buy costs 4.00× the bet on average over the long run. It is the No. 426 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 v3. "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× | 96.01% | 5,010× | 1 in 99,999,958 | 1 in 5.43 | 1 in 11 | 0.04× base | Simulate |
| Ante | Boosted spin | 3.00× | 96.00% | 5,010× | 1 in 33,333,349 | 1 in 6.39 | 1 in 12 | 0.12× base | Simulate |
| Bonus | Bonus buy | 100× | 96.00% | 5,010× | 1 in 499,980 | – | 1 in 4.26 | 4.00× base | Simulate |
Work out the cost of Round Robin 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 | |
|---|---|---|
| v3 | 96.007% | Active |
Frequently asked
What is the RTP of Round Robin?
Base spins return 96.01% of the amount wagered over the long run, from the published outcome table for version 3. Its bonus buy returns 96.00%.
What is the max win in Round Robin and how likely is it?
The top payout is 5,010× the base bet. On a base spin it lands 1 in 99,999,958 spins. In the Bonus buy (100×) 5,010× lands 1 in 499,980 buys.
Does Round Robin have a bonus buy, and what does it cost?
Yes, 1 buy mode. Bonus: 100× the base bet, 96.00% RTP, an expected cost of 4.00× the base bet per buy.
Is Round Robin high or low volatility?
Medium. Its base-mode standard deviation is 15.5× 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.
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