Cat Ball slot: RTP and max win
Cat Ball is a medium-volatility slot by Epic Studios on Stake Engine, released 21 Oct 2026. The top payout is 10,000× the bet; from a base spin it lands about once every 1,200,000 spins. It has 10 bonus buys priced at 20× to 700× the bet; the best returns 96.50%, so each buy costs 0.70× the bet on average over the long run. It is the No. 667 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 v1. "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× | 96.50% | 10,000× | 1 in 1,200,000 | 1 in 4.01 | 1 in 8.67 | 0.04× base | Simulate |
| Ante | Boosted spin | 1.50× | 96.50% | 10,000× | 1 in 500,000 | 1 in 3.91 | 1 in 10 | 0.05× base | Simulate |
| Feature 10 | Boosted spin | 2.00× | 96.50% | 10,000× | 1 in 600,000 | 1 in 10 | 1 in 14 | 0.07× base | Simulate |
| Ante3 | Boosted spin | 3.00× | 96.50% | 10,000× | 1 in 222,097 | 1 in 3.70 | 1 in 15 | 0.11× base | Simulate |
| Ante6 | Boosted spin | 6.00× | 96.50% | 10,000× | 1 in 99,937 | 1 in 3.33 | 1 in 14 | 0.21× base | Simulate |
| Bonus 10 | Boosted spin | 10× | 96.50% | 10,000× | 1 in 120,000 | 1 in 10 | 1 in 12 | 0.35× base | Simulate |
| Feature | Bonus buy | 20× | 96.50% | 10,000× | 1 in 60,000 | – | 1 in 3.69 | 0.70× base | Simulate |
| Extreme 10 | Bonus buy | 25× | 96.50% | 10,000× | 1 in 12,000 | 1 in 10 | 1 in 15 | 0.88× base | Simulate |
| Super 10 | Bonus buy | 30× | 96.50% | 10,000× | 1 in 50,000 | 1 in 10 | 1 in 11 | 1.05× base | Simulate |
| Mystery 10 | Bonus buy | 50× | 96.50% | 10,000× | 1 in 25,000 | 1 in 33 | 1 in 47 | 1.75× base | Simulate |
| Mysteryhidden 10 | Bonus buy | 70× | 96.50% | 10,000× | 1 in 25,000 | 1 in 67 | 1 in 67 | 2.45× base | Simulate |
| Bonus | Bonus buy | 100× | 96.50% | 10,000× | 1 in 12,000 | – | 1 in 2.14 | 3.50× base | Simulate |
| Extreme | Bonus buy | 250× | 96.50% | 10,000× | 1 in 1,200 | – | 1 in 5.15 | 8.75× base | Simulate |
| Super | Bonus buy | 300× | 96.50% | 10,000× | 1 in 5,000 | – | 1 in 2.07 | 10.50× base | Simulate |
| Mystery | Bonus buy | 500× | 96.50% | 10,000× | 1 in 2,500 | 1 in 3.33 | 1 in 7.13 | 17.50× base | Simulate |
| Mysteryhidden | Bonus buy | 700× | 96.50% | 10,000× | 1 in 2,500 | 1 in 6.67 | 1 in 6.67 | 24.50× 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 | |
|---|---|---|
| v1 | 96.500% | Active |
Frequently asked
What is the RTP of Cat Ball?
Base spins return 96.50% of the amount wagered over the long run, from the published outcome table for version 1. All 10 of its bonus buys return 96.50%.
What is the max win in Cat Ball and how likely is it?
The top payout is 10,000× the base bet. On a base spin it lands 1 in 1,200,000 spins. In the Feature buy (20×) 10,000× lands 1 in 60,000 buys.
Does Cat Ball have a bonus buy, and what does it cost?
Yes, 10 buy modes. Feature: 20× the base bet, 96.50% RTP, an expected cost of 0.70× the base bet per buy. Extreme 10: 25× the base bet, 96.50% RTP, an expected cost of 0.88× the base bet per buy. Super 10: 30× the base bet, 96.50% RTP, an expected cost of 1.05× the base bet per buy. Mystery 10: 50× the base bet, 96.50% RTP, an expected cost of 1.75× the base bet per buy. Mysteryhidden 10: 70× the base bet, 96.50% RTP, an expected cost of 2.45× the base bet per buy. Bonus: 100× the base bet, 96.50% RTP, an expected cost of 3.50× the base bet per buy. Extreme: 250× the base bet, 96.50% RTP, an expected cost of 8.75× the base bet per buy. Super: 300× the base bet, 96.50% RTP, an expected cost of 10.50× the base bet per buy. Mystery: 500× the base bet, 96.50% RTP, an expected cost of 17.50× the base bet per buy. Mysteryhidden: 700× the base bet, 96.50% RTP, an expected cost of 24.50× the base bet per buy.
Is Cat Ball high or low volatility?
Medium. Its base-mode standard deviation is 14.8× 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.