Block Foundry's RTP is 96.35%. It is the same in all 7 game modes: the standard game, Bonus+, Bonus Hunt and the four bonuses you can buy. The figure comes from the game's math book and is a long-run average over a very large number of rounds, not a promise for any single session.
Block Foundry is a 6 × 8 cluster slot by Opalin Play, out now on Stake. These figures are the studio's own, from the current math book.
Block Foundry RTP at a glance
| Fact | Value |
|---|---|
| RTP | 96.35% |
| House edge (100% − RTP) | 3.65% |
| Same RTP in every mode | Yes, all 7 modes |
| Max win | 50,000× the bet |
| Board | 6 reels × 8 rows, groups of 5 or more |
| Highest cell multiplier | ×256 |
| Natural bonus (Standard) | About 1 round in 130 |
| Release | Out now on Stake |
What 96.35% RTP means
RTP stands for "return to player". It is the share of all money bet that the game pays back as wins, measured over millions of rounds. For Block Foundry, that share is 96.35%. The other 3.65% is the house edge.
Two things follow from that:
- It is an average, not a forecast. A short session can end far above or far below 96.35%. Results of single rounds are random.
- It does not change while you play. The RTP is fixed in the math book. It does not go up after a losing streak or down after a big win.
The same RTP in every mode, bonus buys included
Block Foundry has 7 modes. In-game, the bonus menu says it plainly: "Every mode has the same RTP: 96.35%."
| Mode | Type | Cost | RTP |
|---|---|---|---|
| Standard | stays on | 1× the bet | 96.35% |
| Bonus+ | stays on | 1.25× the bet | 96.35% |
| Bonus Hunt | stays on | 3× the bet | 96.35% |
| Mega Blocks spins | buy | 50× the bet | 96.35% |
| Block Reserve | buy | 100× the bet | 96.35% |
| Mega Blocks | buy | 400× the bet | 96.35% |
| Masterpiece | buy | 1,000× the bet | 96.35% |
So buying a bonus does not give a better or worse return on average. It changes the price of a round and how wins are spread out, not the long-run percentage. Bonus+ makes natural bonuses about 1.75 times as frequent and Bonus Hunt about 5 times as frequent, and each costs more per spin to keep the RTP at 96.35%.
Where the figure comes from
Every number in this guide comes from Block Foundry's current math book, the file that defines every possible outcome of the game and their odds. The studio publishes these figures on the Block Foundry page and in the game's rules. If the math book changes before release, this page will be updated with the new figure.
Block Foundry is not out yet. When it launches on Stake, the in-game rules will show the RTP for each mode, and that is the figure to trust.
Why RTP is not the whole story
RTP tells you the average, not the ride. Two games with the same RTP can feel very different. In Block Foundry, much of the return sits in the cell multipliers: winning bricks leave the board and double the cell under them, up to ×256, and the cells keep their value until the round ends. That means many small rounds and some rare large ones. The max win is capped at 50,000× the bet; see what the max win is and how it can happen.
Whatever the RTP, set a budget before you play and treat it as the cost of entertainment. Gambling is for adults only (18+).
FAQ
What is the RTP of Block Foundry?
96.35%. It is the same in all 7 modes, including Bonus+, Bonus Hunt and every bonus buy.
Does buying a bonus in Block Foundry change the RTP?
No. Mega Blocks spins (50×), Block Reserve (100×), Mega Blocks (400×) and Masterpiece (1,000×) all have an RTP of 96.35%, like the standard game.
What is the house edge of Block Foundry?
3.65%, which is 100% minus the 96.35% RTP. It is a long-run average over a very large number of rounds.
Is there a lower-RTP version of Block Foundry?
The current math book has one RTP, 96.35%, for every mode. Check the in-game rules: they show the RTP that applies to the game you are playing.
Does a 96.35% RTP mean I get back $96.35 for every $100?
Not in a session. It means that over millions of rounds the game pays back 96.35% of all bets in total. A single session can end higher or lower, and wins are never guaranteed.
Where can I play Block Foundry?
It is out now on Stake. The game page has the rules, the modes and the top wins.