Mines RTP and fairness
Mines is Spribe's 5x5 tile game: you decide how many mines hide among 25 tiles, then open tiles one at a time until you collect or hit a mine. This page sets out what Spribe and independent listings publish about its return to player, its payout cap and its provably fair system, with a source for each figure, and points out where the public record is thin.
| Parameter | Value |
|---|---|
| Published RTP | 97% |
| House edge | 3% |
| Average return per 100 units staked | 97.00 |
| Facts last checked | October 21, 2026 |
The published facts
| Fact | Value | Source |
|---|---|---|
| Developer | Spribe, part of its Turbo Games line | Spribe game page |
| RTP | 97% | Spribe game page, SlotCatalog, Casino Guru |
| Other RTP settings | 95% and 98% operator versions reported | SlotCatalog |
| Board | 5x5, 25 tiles | Spribe game page, PokerListings |
| Mines per round | 1 to 24 in most listings, 2 to 24 in a few | Review listings; not confirmed on Spribe's page |
| Maximum payout | 10,000x the stake, a cap | SlotCatalog, Casino Guru |
| Fairness model | Provably fair | Spribe provably fair page |
| Release | 2021 (SlotCatalog lists September 2021) | SlotCatalog |
Spribe already named Mines in a UK licence announcement in February 2021, so the September date is probably a listing date rather than the first release. The year is not in doubt.
Where a round's result comes from
You choose a stake and a mine count, then open tiles one by one. Each star moves you up a fixed payout table, and a mine ends the round with the stake lost. You can collect after any safe tile. The layout is drawn from the round's seeds, so which tile you click changes nothing about the odds; only the mine count and the moment you stop do.
The table itself is plain counting. With m mines, the chance that your first k picks are all stars is C(25 - m, k) / C(25, k), and the payout is 0.97 divided by that chance. One pick on a 24-mine board, for example, works out at 24.25x.
Checking a round yourself
Spribe describes Mines as provably fair. According to its fairness page, the hash of the server seed is shown before the round, the result comes from a SHA512 hash of the server seed combined with the client seed, and each round in your bet history carries a verification icon.
Step 1. Before you play, note the hashed server seed in the game's fairness settings.
Step 2. After the round, open it in your history and use the verification icon to see the revealed server seed and the client seed.
Step 3. Hash the revealed server seed and confirm it matches the hash you noted. The exact conversion from the SHA512 output to mine positions is not described in the sources above, so use the game's own checker for that part.
A passed check shows that the board was not changed after you bet. It does not change the price of the game.
One 97% for every board
Multiply the chance of reaching k stars by the payout for k stars and the chance cancels, leaving 0.97. A 1-mine board and a 20-mine board therefore return the same on average; more mines only means fewer, larger wins. Two things pull the real figure below 97%:
- The cap. On crowded boards the formula passes 10,000x within a few picks. Five stars on 20 mines would price at 51,536x but pays 10,000x, so that target returns about 18.8%.
- Rounding. One star on a 1-mine board shows 1.01x instead of 1.0104x, a return of 96.96%.
If your casino runs one of the 95% or 98% versions, the info panel says so. The Mines RTP guide builds the full table, and the calculators price a session at your own stake.
Same name, different games
Mines is a generic title. BGaming, Stake and others ship their own versions with their own tables, so the facts here apply only to Spribe's game.
About this site's figures
The results, records and dataset on this site are not collected from casinos. They come from a model of Spribe's 97% payout table applied to a fixed mix of mine counts and picks, explained on the methodology page.