Bonus Buy Slots

Mine: How the Game Works

by InOut Games

RTP
96.00%
Risk level
—
Max cash prize
—
Reel grid
5x3
Winning ways
—
Launch date
24/12/2025
Mine

Cleared Columns Stay Cleared Across Spins

Mine sells its Block Bonus at 100x the stake, and the price buys procedure, not payout. The buy starts four Free Spins under base-game rules. The block field persists between spins, so cleared columns stay cleared. What opens at the bottom is still a draw. Chests drop 2x to 100x, and several multiply together. The stated max win is 100,000 USD. The cheaper way in is the Extra Chance Ante Bet at 3x per spin. It raises the trigger chance fivefold and pays nothing itself. Two purchased rounds at $300 each returned $38.10 and $179.10. At 96.00 RTP, access is the only thing the big price secures.

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Mine review: the 100x buy pays for time, not a floor

What the 100x Block Bonus buys

The Block Bonus in Mine costs 100 times the stake. At a 3 USD bet, the price is 300 USD. It buys exactly four Free Spins. Nothing more is guaranteed. No chest opens by default. No multiplier floor is promised. The reviewed sessions bought it twice. Both purchases cost 300 USD. One returned 38.1 USD. The other returned 179.1 USD. Both finished below their price. The Bonus Game follows base-game rules. Wins come only from chest multipliers. The buy therefore purchases a window, not a floor.

Four spins share one field

Inside the Bonus Game, time does the work. The Miners and mines field below the reels is not regenerated between the four Free Spins. The rules name it a 5x7 field of six block tiers. Every falling pickaxe leaves its damage in place. A chest opens only when a column clears completely. It then drops a multiplier from 2x to 100x. Several chests in one round multiply together. The catalogue lists this compounding as a Progressive Multiplier. Value therefore arrives late in the round. Early spins break blocks. Later spins inherit the breaks. The same persistence shapes the base game. The field also carries its state between ordinary spins. One 3 USD base spin returned 4.2 USD through a 1.4x chest.

Two ways in, running on different clocks

RoutePriceCost over timeWhat it guarantees
Block Bonus100x the stake; 300 USD at a 3 USD betOne payment; the round starts immediatelyFour Free Spins; the field persists between them
Extra Chance, the Ante Bet3x the stake; 9 USD at a 3 USD betCharged every spin; 34 spins pass the 100x priceFive times the trigger chance; no round by itself

What remains after the fourth spin

After the fourth spin, the record outlasts the animation. This build shows no separate win screen. Results appear in a small line and in the bet history. Each bet there carries a verification check. Server seeds and client seeds are published for checking. The long-term number sits outside the game. The catalogue lists RTP at 96.00. No in-game screen states RTP or volatility. Block destruction promises only a specific reward. The rules never price that reward. TNT appears on the reels with no documented effect. Released 2025-12-24, this is the earlier of the two Mine Slot builds.

See the game in action

What each symbol pays

  • 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

Which devices does it work on

Autoplay mode
No

Features

  • Ante Bet
  • Bonus Game
  • Free Spins
  • Progressive Multiplier

How much can you bet

Starting bet
0.12
Maximum bet
100.00

Setting and visual style

Miners and mines

Bonus offers

Buy bonus option
Yes
Higher ante stake
3.00x

Choose a bonus buy option

  • Block BonusCost 100.00x

Editor's rating

Key advantages

  • Block Bonus at 100x guarantees four free spins with damage carrying over, so cleared columns build toward chests.
  • Extra Chance at 3x the stake per spin raises bonus odds fivefold, the cheaper route in for patient players.
  • Chest multipliers from 2x to 100x stack multiplicatively across cleared columns, compounding a bonus round's payout.

Where it falls short

  • No paytable exists and block rewards are never priced, so the value of ordinary spins stays opaque.
  • The autoplay button is disabled in this build, forcing a manual click for every single spin.

Published 30/10/2026