Mines hides a number of mines on a 5×5 grid of 25 tiles. You reveal tiles one at a time; each safe tile raises the multiplier, a mine ends the round, and you can cash out between picks.
Below: the odds of five safe picks for common mine counts, the multiplier a 1% edge allows and how the mine positions can be checked.
Short answer
With 3 mines, your first pick is safe 88% of the time and five safe picks in a row happen about half the time. More mines make each pick riskier and raise the multiplier; at a fixed edge the average cost stays the same.
22 safe tiles out of 25.
Pays about 2x at a 1% edge.
Pays about 17.5x at a 1% edge.
Cashing out early or late does not change the edge; it only changes how much you risk and how often you win.
Tiles on the grid; the multiplier follows from how many are safe.
The fair multiplier at a 1% edge, where P is the chance all your picks are safe.
The chance your first pick is safe with 3 mines.
Every mine count and cash-out point has the same average cost at a fixed edge.
Rules
The mines are placed when the round starts. Clicking patterns cannot move them.
House edge and RTP
Five reveals in a row, at a 1% edge. The multiplier is 0.99 divided by the chance.
More mines, bigger multiplier, same RTP; the cost per bet does not depend on the mine count.
| Mines | 5 safe picks in a row | Multiplier | RTP | What it means |
|---|---|---|---|---|
| 1 | 80.00% | 1.24x | 99.00% | mostly small wins. |
| 3 | 49.57% | 2.00x | 99.00% | about a coin toss for 2x. |
| 5 | 29.18% | 3.39x | 99.00% | wins less than one round in three. |
| 10 | 5.65% | 17.52x | 99.00% | a long shot, about 1 in 18. |
| 20 | 1 in 53,130 | 52,598.70x | 99.00% | a lottery ticket at the same 1% cost. |
Computed at a 1.00% house edge, a common setting; each casino states its own edge in the game rules.
Provably fair Example data
A common scheme used by seed-based mines. Each casino documents how it turns floats into mine positions on its fairness page.
The casino fixed the server seed before you chose your client seed, so it could not pick results after seeing your bets.
That the casino will pay a withdrawal, that the edge is low, or that third-party slots are fair.
| Nonce | HMAC (first 24 hex) | Bytes | Float | Result |
|---|---|---|---|---|
| 0 | ec860d6b9453cb83b7bda3d9… | 236, 134, 13, 107 | 0.9239204775 | 0.9239204775 |
| 1 | 8ed78aee7b78f4e2e2229155… | 142, 215, 138, 238 | 0.5579764205 | 0.5579764205 |
| 2 | 5333750481d52dfcf5413582… | 83, 51, 117, 4 | 0.3250039229 | 0.3250039229 |
| 3 | 63ebf5cb29710b92b5f81337… | 99, 235, 245, 203 | 0.3903192158 | 0.3903192158 |
| 4 | 393c24544ddc0ea8f5573b77… | 57, 60, 36, 84 | 0.2235739427 | 0.2235739427 |
Computed from the demo seeds shown. Casinos differ in message format and in how floats become results; follow the casino's own fairness page.
Patterns and exceptions
What it means: decide your cash-out point before the round; the chance falls with every safe tile because fewer safe tiles are left.
Chance of k safe picks = C(25 − mines, k) ÷ C(25, k). Computed, not measured.
Method
What we read before a casino appears in the list above.
We read the house edge or RTP the casino states for its mines game and whether the payout table is published.
We check that the casino documents its provably fair scheme and lets you set your own client seed and rotate the server seed.
We note the licence the casino states and read the bonus terms for game weighting and maximum bets.
We list the coins the casino accepts and the identity checks it states for withdrawals.
We check for deposit limits, loss limits and self-exclusion you can set yourself.
Crypto originals are built in-house, so each casino chooses its own edge and payout table. We read them from the game's info panel instead of marketing copy.
We may earn a commission when you sign up through our links. It does not change the maths on this page.
Glossary
It changes the swings, not the average cost. Few mines give frequent small wins; many mines give rare large ones. At a fixed edge the RTP is the same.
There is no cash-out point that beats the edge. Every stop has the same average cost; pick one that fits your budget before you start.
In provably fair mines the positions follow from the seed pair and nonce, fixed before the round. You can check them after you rotate seeds.
It proves the casino did not change a result after you bet. It does not lower the house edge, and it says nothing about whether the casino pays withdrawals. See our provably fair casinos for how casinos document it.
Any coin the casino accepts plays the same game. A stablecoin such as USDT keeps your balance steady in dollars while you play; a volatile coin adds its own price swing on top of the game's. Network fees differ by chain, see USDT casinos and stablecoins.
It depends on where you live. Many crypto casinos hold an offshore licence and are not licensed in your country. Check local law before you play, and remember crypto deposits cannot be reversed.
Play safely
Every casino we list sets an age limit, and some countries set it higher.
Responsible gaming →A crypto deposit cannot be charged back. Send only what you can afford to lose.
Set a budget →A coin balance can fall in value while you play. Stablecoins remove that swing, not the house edge.
Stablecoins →Free, confidential help is available if gambling stops being fun.
Gambling addiction help →Other crypto originals
