House of Chaos slot: RTP and max win
House of Chaos is a medium-volatility slot by Backroom Studios on Stake Engine, released 7 Aug 2026. Its base game returns 96.38%, above the median Engine slot (96.02%) and higher than 64% of them. The top payout is 15,000× the bet, bigger than 50% of Engine slots; from a base spin it lands about once every 1,363,636 spins. It has 4 bonus buys priced at 100× to 600× the bet; the best returns 96.38%, so each buy costs 3.62× the bet on average over the long run. It is the No. 5584 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× | 96.38% | 15,000× | 1 in 1,363,636 | 1 in 4.18 | 1 in 11 | 0.04× base | Simulate |
| Black Pr | Bonus buy | 100× | 96.38% | 15,000× | 1 in 15,000 | – | 1 in 8.22 | 3.62× base | Simulate |
| Lobbying | Bonus buy | 200× | 96.38% | 15,000× | 1 in 7,500 | 1 in 1.90 | 1 in 3.14 | 7.24× base | Simulate |
| Inquiry Committee | Bonus buy | 400× | 96.38% | 15,000× | 1 in 3,750 | – | 1 in 4.52 | 14.48× base | Simulate |
| Vote Of No Confidence | Bonus buy | 600× | 96.38% | 15,000× | 1 in 2,500 | – | 1 in 3.86 | 21.72× base | Simulate |
Work out the cost of House of Chaos 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 | 96.380% | Active |
Frequently asked
What is the RTP of House of Chaos?
Base spins return 96.38% of the amount wagered over the long run, from the published outcome table for version 10. All 4 of its bonus buys return 96.38%.
What is the max win in House of Chaos and how likely is it?
The top payout is 15,000× the base bet. On a base spin it lands 1 in 1,363,636 spins. In the Black Pr buy (100×) 15,000× lands 1 in 15,000 buys.
Does House of Chaos have a bonus buy, and what does it cost?
Yes, 4 buy modes. Black Pr: 100× the base bet, 96.38% RTP, an expected cost of 3.62× the base bet per buy. Lobbying: 200× the base bet, 96.38% RTP, an expected cost of 7.24× the base bet per buy. Inquiry Committee: 400× the base bet, 96.38% RTP, an expected cost of 14.48× the base bet per buy. Vote Of No Confidence: 600× the base bet, 96.38% RTP, an expected cost of 21.72× the base bet per buy.
Is House of Chaos high or low volatility?
Medium. Its base-mode standard deviation is 21.8× 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.
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