Casinos in Canada

Mines: the grid game you can calculate

Twenty-five tiles, a few mines, and a multiplier you can check with a pencil. Here is how.

Published September 24, 2026

Start with the board

Mines gives you a 5-by-5 grid of 25 hidden tiles. Before the round you choose how many of them are mines, from one up to a large share of the board depending on the version. Then you click tiles. Every safe tile raises your multiplier. Hit a mine and the round is over, stake lost. Cash out at any time between clicks and you keep stake times the current multiplier. That is the complete rulebook.

Because it is that simple, Mines is less a single game than a genre. Spribe made it popular in its set of quick games, and plenty of other studios have released their own take, with gems, stars or diamonds on the tiles. The rules look almost identical from one to another. The payout table and the return are what differ, so the rules screen of your version is the only reference that counts. Spribe lists 97% for its version; other studios publish their own figures.

The formula behind every multiplier

Here is the part most Mines pages skip. The chance of surviving a set of clicks is plain counting. With 3 mines, the first click is safe 22 times out of 25. The second click is safe 21 times out of the 24 tiles left. Multiply the fractions and you have the survival chance for any number of clicks.

A fair game would pay 1 divided by that chance. A real one pays a bit less, and the gap is the house edge. Below is the math for 3 mines, with the payout a version returning 97% would give.

Mines on a 25-tile board with 3 mines: survival odds and multipliers (our calculation)
Safe tiles revealed (3 mines)Chance of getting thereFair multiplierAt 97% return
188%1.14x1.10x
277%1.30x1.26x
367%1.49x1.45x
549.6%2.02x1.96x
1019.8%5.06x4.90x

Now compare this with the extreme settings. With one mine, a single click is safe 24 times in 25 and pays barely more than your stake: about 1.01x at a 97% return. With 24 mines, a single click has a 1-in-25 chance and would pay about 24.25x at the same return. Same edge, completely different evening.

Try it on your own version: pick a setting, note the multiplier after each click, and divide. If the numbers line up with the counting above, you know exactly what you are playing.

Four things players believe about Mines

  1. "Corners are safer." Mine positions are random for each round. No tile is safer than another.
  2. "The mines were on the left last time." The board is redrawn every round; the previous layout tells you nothing.
  3. "Clicking slowly helps." The layout is set when the round begins. Your speed changes nothing but your hourly spend.
  4. "Pattern tools can see the mines." They cannot. Many versions are provably fair, which lets you verify the layout after the round, never before.

Choosing a setting you can live with

Since every setting carries the same edge, the choice is about how you want the session to feel. A few examples in Canadian dollars:

Whatever you choose, decide the click count before the round, not during it. The whole game is built around the pull of one more tile. Auto mode, where the version offers it, can help: you pick the tiles and the number of rounds in advance, and the game stops arguing with you.

Speed, budget and bonuses

A Mines round can take three seconds. At $0.50 a round and 400 rounds an hour, you put $200 through the game, and a 3% edge means about $6 an hour in expected cost. Bigger stakes or faster clicking scale that up directly. Set a session budget, a time limit on your phone, and a win target you will respect. Our responsible gambling page has tools for all three.

If you play with a deposit bonus, check how instant games count toward wagering on the casino's promotions page first. Some count them fully, some partly, some not at all.

Related games

If you like the stop-or-continue decision, Chicken Road offers the same tension on a road instead of a grid. Aviator puts the decision on a timer. For games made by the studio that popularised Mines, see our Spribe page.

So, how many mines will you put on the board: the one that feels safe, or the number that makes each click matter?

Casinos where you can play Mines-style games

Grid games like Mines sit in the instant section at the five casinos we cover. Versions and returns vary, so open the rules screen of whichever one the lobby offers.

YourWin24

At YourWin24 you'll find this style of grid game in the instant section, and the 250% first deposit with YOUR250 stretches a small-stake session.

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CasinoWinner

CasinoWinner's 4,009 active games include instant titles; compare the Mines-type games there by their rules screens before picking one.

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ZeSlots

ZeSlots runs the same lobby as CasinoPurple, so any grid game you spot on one is on the other; ZeSlots adds a 250% welcome match.

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Cas2Bet

Cas2Bet offers the most games of our five casinos, which makes it the easiest place to find several tile-picking games with different payout tables.

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CasinoPurple

CasinoPurple takes card and crypto at the cashier, and its 100% first deposit with PURPLE100 suits players who keep Mines stakes low.

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Frequently asked questions

What is the RTP of Mines?

It depends on the version. Spribe lists 97% for its Mines; other studios publish their own figure in the game rules. The return applies to every mine setting.

How many mines should I choose?

No number of mines gives better long-run odds. Fewer mines mean more frequent, smaller wins; more mines mean rarer, bigger wins. Pick the rhythm that fits your budget.

What are the odds of revealing 5 safe tiles with 3 mines?

On a 25-tile board, about 49.6%. The fair payout would be about 2.02x; a version returning 97% pays about 1.96x.

Is there a pattern to where the mines are placed?

No. Mines are placed at random for every round, and previous layouts give no information about the next one.

Can I play Mines for free?

Many casinos offer a demo. It is a good place to check the multipliers of your version against the survival math before playing for money.