The RTP Ledger snapshot of the Stake Engine catalogue checked 2026-08-19 displays Bonk Boi by skygaming at 96.5% base RTP, rounded to two decimal places for presentation and equivalent to a 3.5% displayed theoretical house edge. RTP Ledger lists 5 published modes separately; the figures do not predict one session or establish a live casino configuration.
At 96.5%, the theoretical long-run cost is $3.50 per $100 wagered. The base RTP is higher than 73.9% of the 2,830 other Stake Engine games with a base figure. The base RTP is 0.50 percentage points above the median for the compared Stake Engine games.
At the two-decimal display precision, bonus hunt has the highest displayed RTP at 96.88%. Horny Jail has the lowest displayed RTP at 95.05%. The difference between the displayed extremes is 1.83 percentage points.
The highest displayed RTP among modes with “buy” in the published name is 96.79%. The difference from the displayed base RTP is +0.29 percentage points. RTP describes theoretical return over a very large number of bets. RTP does not make a bonus buy safe or predict a short session.
The expected-cost figures apply over a very large number of bets. The figures do not predict what one player will win or lose in a session.
| Mode | Type | Published RTP | House edge | Reported events |
|---|---|---|---|---|
| base | Base game | 96.5% | 3.5% | 10,000,000 |
| bonus hunt | Other feature or mode | 96.88% | 3.12% | 10,000,000 |
| Horny Jail | Other feature or mode | 95.05% | 4.95% | 1,000,000 |
| buy bonk spins | Mode name includes “buy” | 95.46% | 4.54% | 1,000,000 |
| buy super bonk spins | Mode name includes “buy” | 96.79% | 3.21% | 1,000,000 |
RTP Ledger checked Stake Engine (fair.stake-engine.com) on 2026-08-19. RTP Ledger displays each published mode RTP rounded to two decimal places and calculates house edge as 100 − displayed RTP. “Reported events” preserves the source field name; it is not labelled as observed rounds or unique outcomes. RTP Ledger does not independently recalculate the catalogue RTP from weights and payouts.
RTP Ledger checked the Stake Engine catalogue on 2026-08-19. It displays a 96.5% base RTP for Bonk Boi by skygaming, rounded to two decimals for presentation. The corresponding displayed theoretical house edge is 3.5%; neither figure predicts one session.
At the two-decimal display precision, bonus hunt has the highest displayed RTP at 96.88%. Horny Jail has the lowest displayed RTP at 95.05%.
The highest displayed RTP among modes with “buy” in the published name is 96.79%. The difference from the 96.5% displayed base RTP is +0.29 percentage points. The comparison uses catalogue data and does not predict the result of one session.
Stake Engine published the catalogue used for the game record. Compare the in-game mode with the published mode table before you play. RTP Ledger can earn a commission if you open Stake through the link. The commission does not change the RTP figures, the publication decision, or the order of records.
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skygaming has fewer than five catalogue records, so RTP Ledger keeps its studio profile inside the complete games list instead of a separate page.
Version 44, first recorded by RTP Ledger on 2026-08-19. No version change has been recorded since tracking began.