123 Boom! by 4ThePlayer: headline RTP 96.40%, max win x736 350.
An RTP of 96.40% means a house edge of 3.60% — the expected cost is 3.60 units per 100 staked over the long run, whatever a single session does.
The advertised ceiling is x736 350. Max win figures describe the tail of the distribution, not a realistic target: on most games with a ceiling this high the probability per spin is below one in a million.
Against our catalogue the number is above the median of 96.13%, higher than 73% of the games whose RTP we verified. That comparison matters more than the raw figure, because "96%" only sounds generous next to nothing.
Stakes run from 0.1 to 50 per spin on a 5 layout with fixed betways.
123 Boom! is one of 20 4ThePlayer titles in our catalogue, a studio averaging 95.82% RTP across the games we could verify.
See the full 4ThePlayer game list and RTP breakdown.
This title is tagged Pirate. A theme is art direction, not maths — two games sharing every symbol can be priced differently.
123 Boom! has a published RTP of 96.40%, a house edge of 3.60%. We have not yet found a casino serving it at a different RTP build.
Yes. 123 Boom! has a free demo with the same mathematics as the real-money version — the only thing that changes is that the balance is not yours. A demo cannot tell you the RTP build a particular casino serves.
123 Boom! is a 4ThePlayer game, so the outcome is produced by the studio's certified RNG rather than by the casino, and it is not provably fair in the cryptographic sense — you cannot recompute a spin from a seed. What the casino does control is which RTP build it serves. That is the real variable, and it is measurable.