Return to player
96.13%
Minimum bet
0.20
Slot format
Video slots
Volatility
Low
Reels
5
Progressive jackpot
No
Popularity
Maximum bet
40
Game Provider
Microgaming
Bonus features
Yes
Paylines
243
Theme
Mining
Mining Fever Online Slot: Evan Carrington’s Casino Ideal Review
Mining Fever is a video slot with a playful dwarf theme, where valuable combinations can land across reels offering 243 ways to win. The digging soon reveals bonus spins, spreading wilds, wild reels, reels filled with matching symbols, and free spins in this low-variance online slot created by Rabcat.
Theme and Storyline
It is time to dig for slot wins on an expedition to the precious ricks mining site belonging to Driler, Bombur, and Thundar, deep beneath a Dwarvern kingdom. The adventure centres on uncovering bonus spins and free spins.
Graphics, sounds, and animations
The review portrays Mining Fever as one of Microgaming studios’ most active online slot games at the time. Animated scenes show the dwarves opening a gold chest and scattering coins across the screen after a bonus win. When scatter symbols land to trigger free spins, another scene brings the 3 dwarves onto the reels in a mining cart. They keep laughing as wins arrive during the free spins bonus.
The review points to the sound, graphics, cartoon-style symbols, and suspenseful theme music as ingredients that make this online slot entertaining and engaging on mobile and desktop screens.

Top Casinos to Play Mining Fever:
Gameplay
Mining Fever has 5 reels and uses a 243-ways-to-win format based on symbol combinations rather than paylines. For a win of 3, 4, or 5 symbols, matching symbols must land on consecutive reels: 1-2-3, 1-2-3-4, or 1-2-3-4-5, respectively.
There are 6 high-paying symbols and 4 low-paying ones. The highest combination pays 500x the ‘BET’ value; the lowest pays 3x the ‘BET’ value. In this context, ‘BET’ means the amount wagered per coin, not the total bet for a spin.
As symbol combinations connect, the game also features 3 scatter symbols: the 3 dwarves—
Driler, Bombur, and Thundar. Each dwarf has a mining skill that triggers a bonus spin. Their area of expertise is then added to the reels as a feature, such as wild reels or spreading wilds.

Bonuses and free spins
Driler’s Dwarven Drill: This feature awards 1 bonus spin, during which reel 1, 2, or 3 becomes a wild reel. Landing the green dwarf scatters activates it.
Bombur’s Dwarven Bomb: Landing the red dwarf scatter symbols anywhere on the reels triggers 2 bonus spins. Bombur’s Dwarf’s bomb appears at a random position on reel 2, 3, or 4. It acts as a wild symbol on the first spin; on the final spin, it detonates and spreads 3 to 4 wild symbols across the reels.
Thundar’s Dwarven Hammer: This feature grants one bonus spin. Either reels 1 and 2 or reels 2 and 3 fill with the same symbol, forming a 2x3 symbol layout. The symbol is selected randomly from the slot’s regular symbols.
Free spins: Landing any scatter symbol on the reels 3 times triggers 8 free spins of animated action, including a ‘Dwarven Gold Train Feature’.
Dwarvern Gold Train Feature: A tunnel appears on either side of the reels. The 3 dwarves ride in a mining train cart, adding wilds after every spin. They travel from left to right, routinely joining regular symbols to complete or extend combination wins.
Bet sizes, RTP and variance
Set the wager using the left and right arrows in the ‘BET’ area: the minimum is 0.01 and the maximum is 2.00 per coin. With 20 coins used per spin, the resulting range is 0.20 to 40.00 per spin. The review describes the 3 mining dwarves as digging for bonus-spin wins and activating free spins. It also gives Mining Fever low variance and a theoretical RTP of 96.13%; none of these features guarantees a combination win.
Conclusion
The slot’s standout strengths are its animations and numerous features, though they should not be taken as a promise of a larger bankroll. Bonus spins can be triggered by landing 2 matching dwarf scatters anywhere on the reels, with each adding a special feature. The review also describes a lucrative free-spins bonus round that adds wilds and may help build towards a big win.
Evan Carrington brings more than 12 years of experience in the iGaming industry, with a focus on reviewing online casinos, assessing slot games and examining player safety. Their work covers casino licensing, RTP, volatility, bonus terms and withdrawal policies. Drawing on practical testing and independent research, Evan provides clear, evidence-based reviews to help players understand gambling platforms, their features and possible risks.




