Mole Digger Demo & Slot Review (Play'n GO)

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Slot review: Mole Digger

Mole Digger is a cheerful little mining trip where the hero is not a tough old miner, but a nerdy mole in a hard hat, digging gems in a lantern lit shaft. It is made by Play’n GO, and it leans into that classic “one more spin” feeling because small things can suddenly turn into a bonus chase. The reels are packed with tools, ropes, and chunky gemstones, and the whole game keeps pointing your eyes toward the rails under the grid, where mine carts can roll in and scoop up cash. It feels light, silly, and easy to spin, but the bonus side has enough bite to keep you locked in when the gems start piling up.

Slot overview: Mole Digger

Mole Digger plays on 5 reels and 4 rows with 25 paylines. The default RTP is 96.20%, but there are operator variants that drop as low as 94.20%, 91.20%, 87.20%, and 84.20%, so the info screen matters a lot here. Volatility is listed as medium-high, and the bet range is 0.10 to 100. The maximum win is 10,000x your stake.

Feature wise, the game focuses on two main mechanics: Mine Cart cash collections in the base game, and a Hold’n Win bonus driven by colored gems and up to three modifiers that can work together.

Slot features: Mole Digger

Wild symbol: The Wild is the miner mole and it substitutes for normal symbols in line wins.
Gold gems cash symbols: Gold gems can land with instant cash values. These are the main “money pieces” that your features try to collect.
Mine Cart feature: Mine carts can appear on the track under the reels on any spin. When a cart stops under a reel that has gold gems with cash values on it, those values are collected and paid immediately. The possible Mine Cart payouts are listed as 1x to 500x your bet.
Hold’n Win trigger options: You can trigger Hold’n Win by landing 6 gems of any kind at the same time. Or you can trigger it by collecting green, red, or blue gems into their matching pots until one or more pots activate. A tri-coloured gem can instantly trigger Hold’n Win with one or more modifiers already active.
Hold’n Win base rules: The bonus starts with 3 respins. Every time a new symbol lands during the bonus, the respins reset back to 3. Which modifiers are active depends on which pot or pots were activated on the triggering spin.
Hold’n Win modifiers:
- Green modifier (booster): when a green gem lands, it increases random cash prizes on the grid by 1x, 2x, 3x, 4x, 5x, 7x, or 10x the bet.
- Red modifier (high value reveal): when a red gem lands, it reveals a high cash prize of 10x, 12x, 15x, 25x, 50x, or 500x the bet.
- Blue modifier (collector): when a blue gem lands, it collects the values of all cash prizes currently on the grid.
Hold’n Win cashpots: During the bonus, special cashpots can also be won. The highest listed cashpot is 500x the bet, awarded for filling the entire grid with symbols.

Our verdict: Mole Digger

Mole Digger is one of those slots that does not try to reinvent anything, it just runs a solid mining theme with a cute main character and two features that are easy to understand. The Mine Cart moments are a nice little dopamine hit, and Hold’n Win can get properly exciting when the blue collector shows up after the grid has been boosted. The downside is that it can feel familiar if you have played a lot of 3 pot Hold’n Win style games, and the experience depends heavily on which RTP version your casino is running. Still, for a medium-high volatility slot with a clean ruleset and a 10,000x top end, it does its job well.

Our rating 4/10