Play Flux Slot for Free & Review

Flux is a space-themed video slot powered by Thunderkick. With 5 reels and 15 paylines, this game is all about the Bonus feature where you have 3 choices. You can pick from win both ways wins, more rows or both extra rows and win both ways – however the number of free spins adjusts accordingly.

Where to Play Flux Slot


up to £50


Extra Spins



T&C Apply

18+. New customers only. Min £10 dep. Neteller/Skrill excl. Max. bonus £50. Wagering 40x within 30 days. Max. bet: £5. Spins paid 10/day on Book of Dead. Game weighting and T&Cs apply.


Bonus Spins


in Bonuses



T&C Apply

18+ New Customers only. Casino welcome bonus must be selected on sign-up. Eligibility requirements apply. 20 Free Spins on Book of Dead only. Claim via ‘My Offers’ within 14 days of sign-up. Free spins valued £0.10 each with 7 day expiry. 35x wagering on eligible slots. Winnings paid as cash. Casino Package deposits of £10, £20, £50 or £100 matched with bonus of same value. 14 day expiry. Total of four deposit bonuses available. 35x wagering within 30 days of depositing before bonus credited to cash. Book of Dead spins credited upon deposits; under £50 – 10 bonus spins; £50+ – 25 bonus spins. 3 day expiry. Winnings paid as cash.


up to £60




Virtual Reality

T&C Apply

18+. New UK customers only. 200% deposit bonus up to £60. Must use bonus code “OSUK200” upon registration to receive the bonus. Min deposit £20 and 48x wagering requirements apply on bonus (game weighting applies). £3 max bet applies when playing with an active bonus. Bonus expires if not claimed within 7 days. T’s and c’s apply. Please gamble responsibly,

Games developer Thunderkick has headed into space for Flux, another lavishly designed 5 reel, 15 payline slot. This one comes with stacked wilds and three types of bonus games featuring free spins, extra rows and the chance to win both ways. Stakes range from between 10p and £100 per spin.

The Flux in the title is in fact a river of crystals which flows through an imaginary universe, radiating energy. This river features eight brightly coloured floating shapes as symbols as well as a Wild which substitutes for everything apart from the Bonus symbol.

The Bonus is the key that opens up the feature round where the biggest wins are on offer. Find 3 or more Bonus symbols anywhere on the reels and you'll trigger the Bonus feature where you'll be given 3 choices.

With 3 Bonus symbols, you can pick from 16 free spins with the win both ways (paylines from right to left as well as left to right) active, 12 free spins with 7 rows on the reels instead of the usual 4 or 8 free spins with win both ways and the extra rows.

4 Bonus symbols and the choice is 32 win both way free spins, 24 free spins with the 3 extra rows or 16 with both. Trigger the feature with 5 bonus symbols and you can pick from 48 win both way free spins, 36 free spins with seven rows or 24 spins with both.

As we've come to expect from Thunderkick games, Flux is a visual delight. The floating symbols are simple but beautifully effective. The animation is slick and the futuristic, ambient-style soundtrack perfectly matches the graphics. Flux has a similar look and feel to NetEnt's Starburst. The features are slightly different but the two slots share a similar hypnotic quality.

On the variance scale, Flux is on the lower side of medium so there's plenty of play to be had whatever the size of your bankroll. Thunderkick has created another beauty in Flux. It looks terrific as usual and the gameplay is simple but effective. It may not win you a life-changing payout but in terms of entertainment, Flux is up there with the best. If you prefer something more volatile, you should try Børk The Berzerker or Esqueleto Explosivo (also by Thunderkick).

Flux Slot Information

  • Game:
  • Software:
  • Type:
    Video Slot
  • Reels:
  • Paylines:
  • Total Coins:
  • Coins Range:
    0.10 to 100
  • Jackpot:
  • Bonus Round:
  • Free Spins/Multiplier:
Review by Chris Taylor

Review by Chris Taylor

Chris is a slots expert that has reviewed and played over 4,000 online slots. Having being in the iGaming industry for over 16 years, he knows how slots work, how bonus features are triggered and how the RTP and variance affect the gameplay.