Mine Slot Review: How the Game Works
by InOut Games
- RTP
- 96.00%
- Variance
- —
- Biggest possible win
- —
- Reel configuration
- 5x3
- Winning ways
- —
- Release date
- 24/12/2025
Mine Slot: Reels on Top, Real Mining Below
The name suggests a sweeper grid, so the first surprise on opening Mine is that it is nothing of the sort: this is a genuine video slot, five spinning reels over three rows, with a pay mechanic you can read before you stake a penny. InOut Games has bolted a persistent digging field beneath the reel set, so pickaxe symbols drop down and chip through six tiers of blocks toward locked chests, and it is those chests, not line combinations, that carry the Progressive Multiplier from 2x up to 100x. That matters for how the game sits in its own series: as the first Mine Slot entry, released ahead of Mine Slot 2, it establishes the template, a Free Spins round of four spins where the field keeps its damage between spins, an Ante Bet that lifts the scatter chance, and a Bonus Game purchasable outright. The reels look almost decorative next to the mining below them, which is precisely the point of the build.
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Enjoyment first, income never — decide how much you can afford to spend before starting.
Launching the game and placing a bet
The first thing you notice in Mine is the block field sitting under the reels, because your goal is not lining up symbols but breaking every block in a column to open the chest below it. Each round you set a stake, spin, and watch the pickaxes fall, deciding along the way whether to chase the bonus or keep digging in the base game.
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Set your bet
Use the bet stepper on the bottom bar to pick a stake between 0.12 and 100 USD. The center readout shows PLACE YOUR BET until the first spin, and the balance display sits beside it so you can track what each round costs.
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Spin the reels
Press the green Spin button and 5 reels with 3 symbols each start turning. When they stop, any pickaxes fall onto the 5x7 block field below, where each pickaxe's printed durability number chips away at blocks of matching toughness, from Dirt down to Obsidian.
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Clear columns for chests
Keep spinning to deepen the destruction; a locked chest waits under each column. Once a column is fully cleared, its chest opens and drops a random multiplier from 2x up to 100x, and if several chests open in one round their multipliers multiply together against your total bet.
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Trigger or buy the bonus
Land three BONUS scatters to start the Bonus Game of 4 Free Spins, where the field is not regenerated between spins so breaking progress carries over. Optionally, press BUY BONUS to purchase Block Bonus directly, or activate the Ante Bet style Extra Chance toggle to raise the bonus odds at extra cost per spin.
In-game screenshots
Symbol payouts
| Reel symbol | Role in game |
|---|---|
| Wooden Pickaxe | Other |
| Stone Pickaxe | Other |
| Golden Pickaxe | Other |
| Enchanted Pickaxe | Other |
| TNT | Other |
| BONUS (scatter) | Scatter |
| Unidentified green gem symbol | Other |
| Dirt | Other |
| Stone | Other |
| Ore | Other |
| Gold | Other |
| Diamonds | Other |
| Obsidian | Other |
Playing smart: bankroll and volatility
Your real levers in Mine are few and each works differently: one raises bonus odds at a running cost, one buys the bonus outright for a fixed price, and one scales every outcome through the stake. This guide covers those three choices and what the documented evidence connects to each.
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Extra Chance costs triple every spin it stays on
The Extra Chance toggle is available in the base game and replaces your per-spin cost with 3x the total bet until you switch it off. In return the in-game text says bonus trigger odds rise five times; it pays nothing directly, and there is no documented figure for how likely the bonus actually becomes.
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Block Bonus buys certainty at 100x bet
Buying Block Bonus for 100x the total bet starts the same 4 Free Spins bonus that three scatters would trigger, so you trade a large fixed spend for skipping the wait. Recorded purchases still produced losses, so the price guarantees the round, not a return.
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Stake size scales wins but not the odds
You can set any stake from 0.12 to 100 USD, and every win is the chest multiplier times that total bet, with a 100,000 USD ceiling. No evidence links bet size to better chest values or bonus frequency, so raising it changes only the amounts at risk, not the chances.
How the game plays out
The first thing you notice is the reel grid stacked directly above a destructible block field, with a locked chest waiting under every column. Both cards on this page feed into the same bonus round from different directions: one starts it outright for a fixed price, while the other raises the odds of triggering it during regular spins.
| Block Bonus | This bonus round begins either when three or more BONUS scatters land or when it is purchased for 100x the total bet, and it grants 4 free spins. Because the block field is not regenerated between those spins, destruction accumulates across the round and columns become progressively easier to clear; a fully cleared column opens its chest, and multipliers from several chests multiply together. |
|---|---|
| Extra Chance | Activating this ante-style toggle replaces the base bet with a per-spin cost of 3x the total bet, and the bet readout changes to show the new stake. The state persists until you switch it off; while it lasts, the chance of triggering the bonus game is increased five times per the in-game confirmation, though it pays nothing directly and does not alter block or chest rewards. |
Game themes
Mining
Features
- Ante Bet
- Bonus Game
- Free Spins
- Progressive Multiplier
Which devices does it work on
- Has autoplay
- No
How much can you bet
- Min. bet
- 0.12
- Highest wager
- 100.00
Bonuses
- Buy-a-bonus
- Yes
- Ante bet increase
- 3.00x
- Block BonusDefault choiceCost 100.00x
What we think
Strengths
- Pickaxes fall onto a persistent 5x7 block field, so spins visibly build on each other.
- Every win is multiplier times total bet, with provably fair verification in bet history.
- Bonus rules are honest: 4 free spins, the field keeps its damage, chests up to 100x.
What could be better
- Autoplay is present as an icon but disabled, so every spin needs a manual click.
Mine suits a reel player who enjoys watching progress accumulate rather than chasing a paytable: there are no lines or symbol values to read, only pickaxes breaking blocks toward chest multipliers. The trade-off is a slower, click-by-click rhythm and some unexplained symbols, but the stated RTP of 96.00 and transparent maths keep it grounded.
Published on 13/09/2026
- RTP
- 96.00%