Sapphire Supreme 7s

Sapphire Supreme 7s is a classic three-reel slot from Kalamba Games, released on 24 March 2026. It plays on a 3x3 grid with 5 paylines, returns 94.03%, and takes bets from 0.05 to 100. Green 7s and BARs carry multipliers that multiply together, sapphires pay a cashpot ladder of up to 3,000x the bet, and free spins with extra spins and a two-tier Buy Bonus complete the package.

A Golden Slot Machine In A Neon Casino

The reels sit inside a shiny red and gold cabinet that looks like an old-school slot machine, with a row of light bulbs running down each side of every reel. Behind it, rows of slot machines glow under pink and purple casino lights. A lit board on top of the cabinet shows the cashpot values for 3 to 9 sapphires, with the “Sapphire Supreme 7s” logo in the middle.

The symbols are few and simple: a green 7, a red and gold BAR, a sparkling blue sapphire, and a golden Bonus star. The 7s and BARs can land with a gold ribbon showing a multiplier such as x2, x3, x5 or x10.

The Line Pays

At a bet of €2.00 the paytable is short:

Green 7 – €1.20 for three
BAR – €0.80 for three, €0.40 for two

On their own these are small wins – 0.6x the bet for three 7s. The real value of the game lies in the multipliers and the sapphires.

Multipliers Multiply Each Other

Our screenshots show how the multiplier ribbons work. In one spin the first reel was full of 7s with x2 ribbons, a 7 with x5 sat in the middle of the second reel, and a plain 7 landed at the bottom of the third. That diagonal line paid €12.00 – exactly €1.20 × 2 × 5. The multipliers on a line are multiplied together, not added, so two modest ribbons turned a 0.6x line into a 6x win.

In another spin a 7 with an x2 ribbon landed in the middle row between two Bonus stars, and the win was €2.40 – the value of three 7s doubled. That result suggests the Bonus stars can complete a line as well as trigger the feature.

The Sapphire Cashpots

The board above the reels pays for the number of sapphires on the grid. At a bet of €2.00 it reads:

3 sapphires – €6.00 (3x)
4 – €10.00 (5x)
5 – €20.00 (10x)
6 – €80.00 (40x)
7 – €200.00 (100x)
8 – €600.00 (300x)
9 – €6,000.00 (3,000x)

A full grid of nine sapphires is the top cashpot, and the jump from eight to nine is ten times the value. In our base game a cluster of sapphires on the first two reels, next to a 7, paid €21.20.

Free Spins With A Star Meter

Three Bonus stars trigger the free spins – our trigger screenshot shows one on each reel, while the board on top of the cabinet turns into a big glowing Bonus star. The round starts with 8 spins, and the background changes to a shower of golden light and falling gems.

Below the reels a meter of three stars sits next to a +3 Spins label. Filling the meter awards three extra spins, and our screenshots show it working: the counter read 2/8 early in the round and 8/11 later on. During the feature the sapphires land with cash values of their own – 2.80, 0.80 and 2.00 in our spins – and BARs arrive stacked with x1 and x2 ribbons.

The Big €36 Spin

The best moment of our round came at spin 8 of 11: green 7s with x3 and x10 ribbons lined up and a single spin paid €36.00 – 18x the bet – while gold coins flew across the screen. The total for the round jumped from €4.00 early on to €43.60.

Buy Bonus In Tiers

The Buy Bonus menu lets you pick a tier with plus and minus buttons, and then choose between two options. At tier 14 and a bet of €2.00 our screenshot shows 12 free spins for €128.00 (64x) and 8 free spins for €80.00 (40x). The smaller package works out at 5x the bet per spin and the larger one at about 5.3x, so the four extra spins cost a little more each – 6x per spin.

What The Bet Changes

All the values in the game are tied to the stake, so the figures above scale with the bet. At the minimum of 0.05, three 7s pay 0.03 and nine sapphires 150; at the maximum of 100, three 7s pay 60 and the top cashpot reaches 300,000. The Buy Bonus follows the same rule: the 8-spin package at 40x costs 2 at the minimum stake and 4,000 at the maximum.

The multipliers and the cashpot multiples do not change with the bet, which makes it easy to compare spins: the €12.00 multiplied line in our screenshots is a 6x win at any stake, and the €36.00 free spin an 18x win.

The Board Stays On Top

The cashpot board remains visible above the reels during the free spins, so the sapphire ladder is always in view while the gems land with their own cash values. Combined with the stacked BARs and the multiplied 7s, that keeps several ways to win active on every free spin, even on a grid of just nine positions.

Five Lines On Three Reels

With only nine positions, the five lines cover the three rows and the two diagonals. That is why a single multiplied 7 in the middle of the grid is so valuable: it sits on three of the five lines at once, and every multiplier it carries applies to each of them.

Who It Is For

Sapphire Supreme 7s is for players who like the look of a classic three-reel machine but want modern features behind it. The multiplying ribbons, the sapphire cashpot ladder and the extra-spins meter give the simple grid real depth. The 94.03% RTP is on the low side, so it suits players who value the features over long-term return. No volatility rating or maximum win is listed in the sources we checked.

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