Prime Zone Demo: Choose a Zone, Then the Multiplier Follows
Seven free spins, four ways to play them: that is Prime Zone, Quickspin's July 2019 slot set in Las Vegas at night, 5x3 with 10 lines. A picker puts the bonus's Prime Zone on reels 1-2-3 with every win x1, on 2-3-4 at x2, on 3-4-5 at x3, or lets a Mystery zone move each spin with x1 to x4. The sheet lists one RTP, 96.28%; the largest simulated win is 1,076x.
What changes when the Prime Zone moves from reels 1-2-3 to reels 3-4-5?
Where the 3 free spins Wilds land and what every win is multiplied by. On reels 1-2-3 they open the lines and the All-Win Multiplier is x1; on reels 3-4-5 they sit at the far end, where a line must arrive from reels 1 and 2 to use them, and every win is x3. Two or more Wilds on a line add a Line-Win Multiplier, and the rules multiply the two.
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€1.00 is both the client's default stake and the one we logged, with €5,000.00 of play money to start. Stakes run from €0.10 to €100.00, and there is no buy: the picker appears only after three Bonus Scatters.
- Studio
- Quickspin
- Released
- July 2019
- Grid and wins
- 5x3, 10 lines
- Volatility
- 3 on the game sheet (scale not printed)
- RTP
- 96.28% default. One model published
- Max win
- 1,076x the bet, largest simulated win (the sheet says 1 billion spins, the demo server 100 billion)
- Where the RTP comes from
- Base game 57.92% · Free spins 38.36%
- Win of 100x or more
- 1 in 1,486 spins
- Demo bets
- €0.10 to €100.00
- Bonus buy
- None in this game
- Prime Zone Bonus
- 7 free spins; 3 Wilds land in a 3-reel zone you choose
- All-Win Multiplier
- x1, x2 or x3 by zone; x1 to x4 per spin in Mystery Shifting
One Wild pays as a Wild, two double the line
Multiplier Wilds land on any of the five reels and stand in for everything except the Bonus Scatter. One on a winning line pays at x1; two or more add a Line-Win Multiplier equal to their number, up to x5. Five Wilds on a line are also the best symbol win, €100.00 at €1.00, double the red 7's €50.00.
Across our 500 logged spins, 71 winning lines carried one Wild and 17 carried two, paid double; none had three. Those doubled lines, on 14 spins, returned 82x, about a third of all base-game pay. The best base spin, 22.5x on spin 124, was a five-symbol line worth 10x doubled by two Wilds, plus a 2.5x line.
Three fixed zones and one that wanders
Bonus Scatters, three of them anywhere on reels 2, 3 and 4, award the Prime Zone Bonus: 7 free spins after a choice of four options, each deciding the zone's reels and the All-Win Multiplier on every win. In our log two scatters showed on 36 base screens and three on 4.
Mystery Shifting moves the zone between reels and draws the All-Win Multiplier from x1 to x4 on each spin. The help screens rank the options plainly: a higher All-Win Multiplier means higher risk and higher win potential. They also multiply the All-Win and Line-Win Multipliers together, so a two-Wild line in the x3 zone pays x6.
Our rig clicked where that card first appeared, in two media sessions, while the picker was still moving. The first round, triggered on media spin 85, was stopped before it played; its opening screen shows an x1 badge and a Wild on reel 1, which is how the help describes the zone on reels 1-2-3.
The second, from media spin 394 at €1.00, is filmed below. As the first free spin began, a large x2 flashed over the reels; after that the badge read x2 and the zone framed reels 2-3-4 on all 7 spins. That is the 2-3-4 option as the help describes it, not a shifting Mystery zone, so the click most likely took another card. The third spin paid €21.00 and the round €31.00, 31x the stake.
Our 500 spins: four bonuses, every one on reels 1-2-3
The run of 500 spins at €1.00 on 24 Oct 2026 paid on 22.2% of spins and returned 95%. The rig answers the picker with the first card, so all 4 bonuses ran on reels 1-2-3: the server logged an All-Win Multiplier of 1 on all 28 free spins and every spin's 3 Wilds on reels 1 to 3.
- 500paid demo spins at €1.00
- 22.2%of them paid something
- 77xbest spin, free spins round included
- 4free spins bonuses triggered
The rounds paid 77x, 52x, 30x and 76.5x, together 47.1% of the stake against the 38.36% the sheet credits to free spins. Base-game lines returned 47.9% against 57.92%. Every winning line in those free spins ran through a zone Wild: 19 with one at x1, 58 with two at x2 and 3 with three at x3. The best free spin, in spin 145's round, made three gems and two Wilds a five-gem line, 25x doubled.
The 100x mark was never reached, though the sheet expects it once in 1,486 spins. Quickspin lists a single RTP model for Prime Zone, 96.28%, and that is what the demo server runs.
Eastern Emeralds makes you choose as well
Eastern Emeralds (2018) also asks for a choice before its free spins, between 6 and 15 of them. On paper it is the wilder game: volatility 5 of 5 to Prime Zone's 3 (printed without a scale) and, with the 6 free spins choice, a simulated top of 16,003.7x to 1,076x and 100x once in 1,171 spins, not 1,486.
Flip Royale shares the 5x3 grid, the 10 lines and the sheet's volatility of 3, with a lower ceiling of 433x.
Setting the bonus's temper before it starts
Prime Zone suits a player who would rather decide the shape of a bonus than leave it to the reels. On reels 1-2-3 our four rounds never paid less than 30x or more than 77x. The other three options trade that steadiness for the multipliers the rules call higher risk; our one filmed round, 31x on reels 2-3-4 at x2, is too little to show how they compare.
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Drawn from the help screens, Quickspin's sheet and game page, and our log.
Do the free spins Wilds multiply a line the way base-game Wilds do?
Yes. In our 28 logged free spins, lines through two zone Wilds paid x2 and lines through three x3, the Line-Win Multiplier the base game uses. The rules then multiply that by the option's All-Win Multiplier, x1 on reels 1-2-3.
Are the seven free spins all you get?
Yes. Quickspin's game page and sheet say Bonus Scatters are not available during free spins, so the 7 spins cannot be extended; the help screens only place the scatters on reels 2, 3 and 4 for the trigger.
Is any picker option worth more RTP?
Quickspin does not say. The sheet gives one total, 96.28%, with 38.36% from free spins as a whole and no figure per option. The help screens only rank the options by risk: a higher All-Win Multiplier, higher risk and higher win potential.
Is 1,076x the ceiling in every mode?
1,076x is the largest simulated win (the sheet says 1 billion spins, the demo server 100 billion), with no separate figure per option; larger numbers some listings print for the Mystery option are not Quickspin figures. Our best in 500 spins was 77x.