Science fiction and mining are reasonably common themes in the world of online slots and here they join forces in Space Digger, a release from Playtech set on some distant planet where huge machines drill into the surface to find gems, big wins and hopefully a few free spins.

Space Digger is a five reel slot with three rows and twenty fixed paylines; those reels float above this rocky planet on which gems of various colours protrude from the soil. Other planets a little too close for comfort orbit in the starry sky.

All the symbols are related to the theme and include the Space Digger logo, three futuristic drills of various shapes and colours along with gems in red, purple, blue and orange.

The big, yellow digger is wild, it appears stacked on all reels and it will substitute for all other standard symbols to help make winning matches; the glowing, blue light is the bonus symbol.

Bonus Features

Wild Digger

This mini-feature occurs whenever the wild symbol lands completely in view on a reel – it will then remain on the reels, shfiting to the right on each subsequent spin until it helps out with a win.

Hidden Gems Free Spins

This is triggered by landing three of the blue bonus symbols anywhere on reels two, three and four for which you’ll be award eight free spins. The round will start with reel one and one other completely wild with any other wilds appearing expanding to fill their reels – when a wild participates in a win it will move one reel to the right until it falls off the end. It’s not possible to retrigger this round.

Verdict

Space Digger looks quite simple but engages the player with some clever bonus features and atmospheric sound effects; it’s a high quality release from Playtech which offers a little something for everyone.

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