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A new slot game released through provider Microgaming, Rainbrew brings a whimsical twist on a familiar theme and some new features add an extra layer of interest to this colourful game.
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Colourful and an unusual reel structure, Rainbrew displays the best that JFTW and Microgaming can do.


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Rainbrew Pros & Cons

  • Thumbs-Up Rich game design
  • Thumbs-Up Variable ways to win
  • Thumbs-Up High max win
  • Thumbs-Down No jackpot
  • Thumbs-Down Unusual reel structure may not appeal to all players

Rainbrew Slot Review

A slot released through game provider Microgaming, Rainbrew brings a whimsical twist on a familiar theme and some new features add an extra layer of interest to this colourful game to be found in a number of UK online casinos.

Rainbrew has been released through Microgaming’s Quickfire platform and is powered by JustForTheWin, a games studio that has been consistently impressive when it comes to their creative output. They may be small (for now) but JFTW certainly know their way around a good slot game. Other titles so far have impressed players with their exciting and innovative features as well as a strong attention to detail.

This corker of a game is based on a lucky Irish theme, taking place inside a leprechaun’s brewery. The leprechauns themselves feature on the reels, alongside smoking pipes, Celtic-style symbols and mugs and barrels filled with magical, colourful brew. While this may not be the most creative theme for a slot – leprechauns have been sources of inspiration for many a slot game – the combination of game features and top-notch design and animation helps this title stand out from the crowd.

Let’s take a look at the technical details and the design features players want to know more about.

  • Between 243 and 1,125 ways to win
  • The reel layout is 3-5-5-5-3
  • Bet minimum is 0.1; bet maximum is 100 per round
  • Maximum win on a single bet line is 136,000 coins
  • Special features include Wilds, Sidewinder, Free Spins feature
  • Return to Player of 96.02%
  • Volatility is medium

Rainbrew bonus features

Rainbrew might appear confusing at first, with its unusual reel layout and varying ways to win but players will quickly find that this Microgaming slot certainly makes them feel lucky!

In the base game, the male leprechaun is the most valuable symbol, rewarding players with 8x their stake when 5 symbols appear on a single payline. However, it’s really the additional game features that are the money-makers for hopeful players, with the Sidewinder feature and the win-boosting Wilds having the potential to rake in large coin wins. Let’s take a look at the game features in this JFTW slot and how they can add up to some significant wins!


There are three different kinds of Wilds to watch out for on Rainbrew, all of which can substitute for any symbol except the Free Spins Scatter.

The Regular Wild can only be found on horizontal reels, while the Bottom Wild appears only on reel 3 and the topmost horizontal reel. The Top Wild appears on reel 2 and the lower horizontal reel. These special Wilds can boost players’ chances of striking a winning combination whenever they fall along paylines. Sounds confusing? It’s not, really, especially when you factor in the Sidewinder feature.

Rainbrew Sidewinder feature

The Sidewinder contributes the most heavily towards the RTP percentage at 50.66%. This innovative game feature makes this a dynamic slot and Rainbrew’s unusual reel layout contributes to it. The Sidewinder feature is activated when a Top and a Bottom Wild both appear, activating the top and bottom horizontal reels.

This action boosts the number of ways to win, taking it up to 1,125 ways to win when both horizontal reels are active. That’s an impressive opportunity to really add those wins up over time, particularly if this feature is activated repeatedly in quick succession.

Rainbrew free spins

The Spins Scatter symbol is the one to watch out for, and it can appear on reels 2 and 4, as well as the horizontal reels. When it appears on the latter, both horizontal reels become activated and will spin.

Land 3 Free Spins Scatters to receive 6 spins or land 4 Spins symbols to trigger 10 free spins. Wilds symbols are also good news for players. When they land in matching positions on the horizontal reels, they will expand to reveal Regular Wilds on the reels in between. This could mean up to 3 Wild columns appearing on each free spin and increasing the chances of landing a win along a payline. Land a Scatter during a spin to receive another spin!

It’s important to note that the Sidewinder feature is always active during spins, which means that players stand to strike it lucky even more frequently.

Rainbrew jackpot

This Microgaming slot does not offer a progressive jackpot. The maximum coin win possible is 136,000 coins. The number of ways to win varies depending on whether or not the horizontal reels are activated. It is possible, by activating 3 fully Wild reels, to collect up to 2,720x your initial stake!


The Return to Player on Rainbrew is calculated to be at 96.02%. This falls well within the average for this kind of slot and players can look forward to small, frequent wins on this game.

Rainbrew on Mobile

Rainbrew is fully mobile compatible. This colourful game will look and play great, whether you are spinning via your desktop or laptop computer, or a mobile device such as iPhone, iPad or Android machine. Microgaming, through its Quickfire platform, has made it a point to release all of its titles as mobile-friendly – something that casino players surely appreciate in this mobile age!

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