Aesthetically, you are taken deep underground to mines – with a mining dwarf to the right of the reel set, symbols include spades, clubs, hearts and diamonds. You’ll also see shovels, axes, helmets and lanterns. When you land the same symbol on at least 3 consecutive reels from the left, you’ll get a win. If more than 1 symbol on 1 reel appears, a multiplier is added.

Look out for the Bonus symbol (on reels 1, 3 and 5) as this expands the reels by 1 row – each reel can be expanded by up to 3 rows. This will increase the number of ways to win – up to 16,807! This is known as the Expanding Reels feature.

Dwarf Mine comes with a Free Spins feature – this is played when you get 3 bonus symbols simultaneously on reels 1, 3 and 5. You will get 10 free spins on a fully expanded 5x7 reel set.

Now, look out for collectible symbols which only appear on the expanded rows in the base game – if you collect 5 of the same colour, you will trigger the Collection Free Spins feature with 5 free spins awarded. Now, the feature contains super high value symbols which 4 different coloured gemstones. The red one is the most valuable giving you 4 times your stake for 5 on a payline. The free spins take place on a 5x7 reel set.

Dwarf Mine is a nicely designed slot which comes with some good bonus features – I like the multiplier element if more than 1 symbol appears on each reel as this can prove quite lucrative in the Collection Free Spins feature where only super high value symbols appear. Medium to high variance, you can win 3,904.2 times your stake on each free spin. If you like the mining theme, Quickspin’s Dwarfs Gone Wild is recommended.