Crimson Casefile slot: RTP and max win
Crimson Casefile is a medium-volatility slot by Odd Opera on Stake Engine, released 10 Sep 2026. Its base game returns 96.14%, above the median Engine slot (96.02%) and higher than 56% of them. The top payout is 20,000× the bet, bigger than 59% of Engine slots; from a base spin it lands about once every 2,016,129 spins. It has 3 bonus buys priced at 70× to 500× the bet; the best returns 96.48%, so each buy costs 18× the bet on average over the long run. It is the No. 4628 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× | 96.14% | 20,000× | 1 in 2,016,129 | 1 in 3.05 | 1 in 7.82 | 0.04× base | Simulate |
| Fs1 | Bonus buy | 70× | 96.24% | 20,000× | 1 in 318,471 | every round | 1 in 3.04 | 2.63× base | Simulate |
| Fs2 | Bonus buy | 200× | 96.33% | 20,000× | 1 in 6,380 | 1 in 1.01 | 1 in 3.01 | 7.34× base | Simulate |
| Fs3 | Bonus buy | 500× | 96.48% | 20,000× | 1 in 428 | 1 in 1.02 | 1 in 4.44 | 17.60× base | Simulate |
Work out the cost of Crimson Casefile 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 | 96.137% | Active |
Frequently asked
What is the RTP of Crimson Casefile?
Base spins return 96.14% of the amount wagered over the long run, from the published outcome table for version 10. Its bonus buys return between 96.24% and 96.48%.
What is the max win in Crimson Casefile and how likely is it?
The top payout is 20,000× the base bet. On a base spin it lands 1 in 2,016,129 spins. In the Fs3 buy (500×) 20,000× lands 1 in 428 buys.
Does Crimson Casefile have a bonus buy, and what does it cost?
Yes, 3 buy modes. Fs1: 70× the base bet, 96.24% RTP, an expected cost of 2.63× the base bet per buy. Fs2: 200× the base bet, 96.33% RTP, an expected cost of 7.34× the base bet per buy. Fs3: 500× the base bet, 96.48% RTP, an expected cost of 17.60× the base bet per buy.
Is Crimson Casefile high or low volatility?
Medium. Its base-mode standard deviation is 17.8× 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.
Slots with similar math to Crimson Casefile
Matched on volatility, max win, RTP and whether there's a bonus buy. Not on theme.
Corgi ParkGrim Relic Gaming RTP96.10%Max win20,000×Volatility
TroyGood Odds RTP96.10%Max win20,000×Volatility
Smokin' ZonkoWayvyGames RTP96.00%Max win20,000×Volatility
Wacky WildsVenture Studios RTP96.25%Max win20,000×Volatility
Mister FoxChatty Games RTP96.11%Max win20,000×Volatility
BRIMSTONESAVAGE GAMING RTP96.00%Max win20,000×Volatility