Spectra is a futuristic looking 5 reel, 30 payline slot from Thunderkick. Mixing a classic fruity set up with neon style visuals, it looks a treat. On the features front, the main attractions are wild nudges and wild re-spins which hit at regular intervals. Play on mobile, tablet and desktop devices from between 10p and £100 per spin.

Spectra has a space age feel – set against a dark blue backdrop, the symbols on the reels look like they’ve been created in neon and as you’d expect given the title, they cover all the colours of the spectrum. In ascending order of value look out for blue circles, sky blue triangles, green square, purple diamond and red pentagon. They’re joined by green clover, golden bell, lucky red 7 and the white Bar. Landing 5 of these will get you a payout of 10 times your total stake.

Rounding out the symbols is the rainbow coloured W which is the wild – this replaces all other symbols and always appears in stacks of 4. 5 Ws on a payline will get you 20 times your total stake.

You’ll notice that there aren’t any scatters here – there aren’t any free spins either. Don’t despair though as the wilds come with re-spins and plenty of them.

Every time a W lands anywhere on the reels you’ll trigger the Wild Respin feature and be awarded a free re-spin. On each of these re-spins, the wilds will nudge closer to the centre of the reels – this is known as the Wild Nudge feature – the wild stacks will nudge towards the centre of the reels during each respin ensuring you work your way towards a fully wild reel. If you get more wild stacks, you will continue to get respins and benefit from wild reels!

For example, a W lands on the top row of the reel, it will nudge down by 1 so that the re-spin features 2 wilds. The wilds can move up or down, always heading towards the middle. Land a new wild adds another re-spin to your total.

The wilds come along on a fairly regular basis so you won’t be waiting ages for a re-spin. This is still a pretty high variance slot though. We enjoyed a trickle of smaller payouts which were punctuated by the occasional big hitter. There’s up to 2,400 times your stake to be won on each spin.

The design in Spectra is as top end as you’d expect from a Thunderkick powered slot – the simple graphics are nicely done, complemented by the bangs and bleeps that give the game a real sci-fi feel.

With quality sound and visuals and simple, repetitive gameplay, Spectra is a hypnotic play. If you enjoyed the likes of NetEnt’s Starburst, you’ll likely enjoy this glimpse into the future too.