Double Rainbow Slot Review

Double Rainbow was released in the spring of 2022 and immediately became a favourite among those who were tired of harsh plots and complex mechanics. It's almost an anti-stress automaton: everything around is cute, the animations are smooth, the symbols are rainbow candies and clouds that are easy to assemble into bright combos. Hacksaw Gaming was clearly making a game for an audience that is looking for something light and visually pleasing, but at the same time does not want to sacrifice the chance of decent winnings.

The feature of the slot is the unique Rainbow Reel. At any point during the spin, a rainbow will be activated, which can bring a random multiplier to win. There are no usual bonus rounds with free spins, but there is a constant intrigue: how many rainbows can you catch in one session? The slot turned out to be quite popular with those who like non-standard games, simple math and do not mind playing with minimal stress.

The game is built on a 7×6 grid, where winnings are awarded for clusters of five or more identical symbols touching horizontally or vertically. Each time you win, the combination disappears, and new symbols fall in its place (cascading mechanics). An important feature is the Rainbow Reel: if one or more rainbows are activated, each of the rainbow reels will give a random multiplier from x2 to x100 for all symbols that match on this reel.

The gameplay is as simple as possible: there are no complicated modes, but due to the multipliers and cascades, there is a chance to catch long series in a row. Sometimes the rainbow works in turn on several reels, and then there is a chance for a really big win.

Instead of classic free spins, the main feature here is the Double Rainbow function. When you manage to activate the rainbow on all seven reels in one spin, a series of free respins begins with the preservation of all accumulated multipliers. Each next lunge of the rainbow at this stage only increases the chance of a large big win, since the multipliers can add up and reach impressive values.

There are no other bonus games or options for buying a bonus - all the excitement is built on successful series of cascades and how many rainbows fall out in one session. This is a simple but unusually interesting system: here you can really catch a long chain of winnings without complex rules.

The symbols are colourful candies, clouds, rainbow circles and, of course, the rainbow symbol itself. The most valuable is a purple candy. Next are orange, red, green and blue. There are no special Wild and Scatter symbols here - all chips are built on the Rainbow Reel and accumulative multipliers. Blue and green candies give small winnings, and if you collect purple combos under a good multiplier, you can catch a really decent win.

The maximum win in Double Rainbow is x5,000 of the bet. It is possible to catch a "cap" if several large multipliers and large combos of top symbols appear during the respins. In practice, the maximum is rarely triggered here, but even the usual series of rainbows and long cascades bring good winnings if the multipliers are successful. The volatility of the slot is average, which gives a chance not only for a cap, but also for frequent pleasant payouts.

Visually, this is one of the most pleasant slots from Hacksaw Gaming: soft colours, smooth animations, a lot of positive details. The symbols really look like gummies, and the background looks like something out of a cartoon for kids. The music is light, unobtrusive, with lounge elements and rhythmic inserts. Rainbow effects are always vivid, but not annoying even when playing for a long time. On mobile phones, everything looks and works perfectly, I did not notice lags.

Double Rainbow is suitable for those who are looking for a simple and relaxing game with a chance of a decent big win, but do not want to sit in nervous tension due to volatility. The slot will appeal to both beginners and those who like visually light slot machines, as well as everyone who is tired of complex and "heavy" plots.

The volatility is average, so the bankroll does not "fly away" too quickly — you can bet 3-4% per spin. I do not advise you to chase big winnings - it is better to do a lot of short sessions to catch a series of rainbows and accumulate good multipliers. The default RTP is 96.38%, but there are versions with a lower RTP (e.g. 94.33%), so be sure to check this figure in your casino. For auto-spins, it is better to set limits on loss and win so as not to play on the wave of luck.