Retro Y2K slot: RTP and max win
Retro Y2K is a medium-volatility slot by VOIDMOON on Stake Engine, released 27 Aug 2026. Its base game returns 95.58%, below the median Engine slot (96.02%). The top payout is 25,000× the bet, bigger than 81% of Engine slots. It has 5 bonus buys priced at 100× to 1,000× the bet; the best returns 95.60%, so each buy costs 4.40× the bet on average over the long run. It is the No. 5165 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 v21. "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× | 95.58% | 5,000× | 1 in 50,000 | 1 in 3.70 | 1 in 3.70 | 0.04× base | Simulate |
| Barboost | Bonus buy | 100× | 95.60% | 15,000× | 1 in 3,857 | 1 in 1.07 | 1 in 8.72 | 4.40× base | Simulate |
| Bonus | Bonus buy | 100× | 95.50% | 15,000× | 1 in 10,597 | every round | 1 in 9.27 | 4.50× base | Simulate |
| One Spin | Bonus buy | 1,000× | 95.51% | 25,000× | 1 in 1,667 | 1 in 1.02 | 1 in 2.36 | 44.93× base | Simulate |
| Super | Bonus buy | 1,000× | 95.54% | 25,000× | 1 in 1,667 | every round | 1 in 3.73 | 44.61× base | Simulate |
| Superbarboost | Bonus buy | 1,000× | 95.54% | 25,000× | 1 in 25,000 | – | 1 in 3.61 | 44.61× 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 | |
|---|---|---|
| v21 | 95.580% | Active |
Frequently asked
What is the RTP of Retro Y2K?
Base spins return 95.58% of the amount wagered over the long run, from the published outcome table for version 21. Its bonus buys return between 95.50% and 95.60%.
What is the max win in Retro Y2K and how likely is it?
The top payout is 25,000× the base bet. On a base spin the top payout of 5,000× lands 1 in 50,000 spins. In the Barboost buy (100×) 15,000× lands 1 in 3,857 buys.
Does Retro Y2K have a bonus buy, and what does it cost?
Yes, 5 buy modes. Barboost: 100× the base bet, 95.60% RTP, an expected cost of 4.40× the base bet per buy. Bonus: 100× the base bet, 95.50% RTP, an expected cost of 4.50× the base bet per buy. One Spin: 1,000× the base bet, 95.51% RTP, an expected cost of 44.93× the base bet per buy. Super: 1,000× the base bet, 95.54% RTP, an expected cost of 44.61× the base bet per buy. Superbarboost: 1,000× the base bet, 95.54% RTP, an expected cost of 44.61× the base bet per buy.
Is Retro Y2K high or low volatility?
Medium. Its base-mode standard deviation is 22.5× 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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