Flux Slot Review

Provider	Thunderkick

Flux is a five-reel, three-row slot from Thunderkick with 15 fixed paylines and an RTP of 96.2%. The theme is abstract and geometric - glowing 3D crystal shapes drift across a dark backdrop with an atmospheric synth soundtrack. It is a visually distinctive game that stands apart from the sea of fruit machines and ancient Egypt slots. If you enjoy a clean design and a free spins round with genuine strategic choice, Flux is worth your time.

There are eight main symbols, all colour-coded gems and crystal shapes. The gold star gem is the most valuable, paying 24x your stake for five on a payline. Below it sit orange (12x), red (5x), pink (3.5x), green (3x), light blue (2.5x), purple (2.2x) and dark blue (2x). A yellow "W" wild substitutes for all regular symbols, and it can appear stacked across all five reels. The silver "B" scatter triggers the free spins feature.

Bets and Setup

Stakes run from £0.10 to £100 per spin. The 15 paylines are fixed, so your only decision before each spin is how much to bet. The paytable is a click away from the control panel in the bottom right, alongside an autospin that runs up to 5,000 spins. Flux has medium volatility with a max win of 2,562x stake, which sits at a reasonable ceiling for a mid-variance game.

Free Spins Feature

Three or more scatter symbols trigger the free spins round. Flux then offers you a choice of three bonus configurations, and this is where the game earns its interest.

With three scatters you pick from:

8 free spins with wins paying both left-to-right and right-to-left
12 free spins with three extra rows added, expanding the standard 5x3 grid
16 free spins with extra rows plus wins paying both ways

Four scatters doubles those counts to 16, 24 and 32. Five scatters gives you 24, 36 or 48 free spins. Any bonus symbol landing during the free spins adds one extra spin. Re-triggering the feature is not possible.

The choice is meaningful. The "both directions" option gives more base-game spins on a standard grid. The expanded rows option increases the playing field and the number of active paylines. The combined option - extra rows plus both-way pays - offers the highest spin count and the widest coverage but you get the fewest spins if you trigger with just three scatters. Most players doing the maths land on the expanded-rows option as the middle ground, but landing five scatters and taking the combined option is the highest-potential play in the game.

Is Flux Worth Playing?

Flux launched in 2014 and it holds up well. Thunderkick kept the base game lean - there are no random modifiers or base-game side features cluttering things up. The interest builds entirely in the free spins round, where the expanded grid and both-ways pays can stack wins across a much larger number of combinations than the standard setup allows.

At medium volatility with a 96.2% RTP, Flux sits in a comfortable range for regular sessions. It is not a high-volatility game built around rare but enormous wins. The free spins choice mechanic gives you a degree of control that most slots do not offer, which adds engagement without overcomplicating the game.

Flux is made by Thunderkick, a Swedish developer with a strong catalogue of visually inventive slots. If you enjoy their style, this is a solid entry point. If you have played their other games and want something with a similar feel and a well-built bonus mechanic, Flux delivers.

Flux Slot FAQ

Who makes the Flux slot?

Flux is made by Thunderkick, a Swedish game studio known for distinctive visual design and creative mechanics.

How many paylines does Flux have?

Flux has 15 fixed paylines across five reels and three rows.

What is the RTP of Flux?

Flux has a return to player (RTP) of 96.2%.

How do you trigger the free spins in Flux?

Land three or more scatter symbols on the reels to trigger the free spins round. You then choose from three different configurations with varying spin counts and grid options.

What are the free spins options in Flux?

With three scatters you pick 8 spins with wins paying both ways, 12 spins with extra rows added to the grid, or 16 spins with extra rows plus both-way pays. More scatters increase the spin counts in each option.