Rainbow Wilds

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  • Cascading reels
  • Enchanting design
  • Free spins
  • Colossal top win
  • No turbo spin
  • Only one non-wild bonus feature

Rainbow Wilds is an online slot developed by Iron Dog. It is a medium-high volatility slot and has an RTP of 96 per cent. There are 1,024 ways to win and the top payout is 300,000x. Features include free spins, expanding wilds and sticky wilds.


Rainbow Wilds embodies the luck of the Irish, with its paytable overflowing with symbols themed around rural Ireland. Solid gold clovers, horseshoes and birds top the paytable, followed by a heart, a harp and a pint of good dark stout. Even the less-valuable fruit symbols are gorgeously designed.

Cascading reels are the order of the day in Rainbow Wilds. If you are not familiar with the cascading reels feature, it makes multiple wins possible on just one spin. Winning combinations are destroyed to make room for new symbols, which can form new combinations. Cascading reels are suspenseful and exciting, especially when the new symbols appear!

Rainbow Wild’s bonus features steal the show. It is possible to win up to 20 free spins, which come with multipliers as high as 6x. Sticky and expanding wilds bring some variety to the base game, so Rainbow Wilds feels especially action-packed.

All these features are available in free play mode as an irondog demo slot, so there is nothing to stop you chasing your pot of gold!

Theme, graphics and design

Rainbow Wilds feels like a class act even before it has loaded. The glamorous, silver-sleek Iron Dog logo flashes across the screen, and the slot certainly doesn’t disappoint. The colour palette is overwhelmingly green, with the reels nestling amongst verdant pastures of four-leafed clovers and hills, with a crystalline lake in the background.

Two roguish, red-haired leprechauns emerge from the bushes and remain at the side of the reels throughout. After a win, they are sometimes joined by a female leprechaun. The slot does a great job of making its setting feel populated with magical creatures.

We were particularly struck by the enchanting music, which has a truly magical quality. It comprises soft pipes and strings, which rise and fall like a pastoral symphony. The tune is at once evocative of the rural idylls of Ireland and all the accompanying myths and legends.

Rainbow Wilds

Rainbow Wilds RTP & volatility

Rainbow Wilds has a bang-on-average RTP of 96 per centand is medium-high volatility. The 300,000x top win is one of the highest around, but you will need to be extremely lucky to get near it!

How to play Rainbow Wilds

This brief explanatory section should get you started:

1. The white question mark to the bottom left of the screen is the place to start. Press this to open the instructions.

2. Using the green arrows to scroll, cycle through explanations of the cascading reels, symbol values and bonus features. Close this menu when you have finished.

3. Your wager adjustment is a two-step process. Press the small pile of coins, then use the left and right arrows to set your bet size.

4. The small white letter A opens autoplay, which sets up to 999 spins and includes loss/win limits.

5. Once you have decided on your budget, start Rainbow Wilds spinning by pressing the start button. Always remember to play responsibly.

Bet & win sizes

Bets on Rainbow Wilds start at 0.50 and can be increased up to 50. The trio of golden symbols award the largest prizes, with landing five golden clovers paying 400x.

The paytable is varied, so let’s take a look at what is on offer for five of a kind:

- Golden clover = 400x
- Golden horseshoe = 250x
- Golden bird = 150x
- Heart = 120x
- Harp = 80x
- Beer = 50x
- Blueberries = 30x
- Grapes = 20x
- Orange berries = 15x
- Red berries = 10x
- Purple berries = 10x

Since Rainbow Wilds uses cascading reels, there are 1,024 ways to win and an astounding top prize of 300,000x. A jackpot of this magnitude is, of course, very rare.

Rainbow Wilds bonus features

It shouldn’t come as a surprise that a slot with this kind of magical quality offers some equally spellbinding bonus features!

Here is a quick explanation of how they work:

- Rainbow Wilds free spins

Free spins are awarded a little differently in Rainbow Wilds. Rather than traditional scatter symbols, players will see a large clover to the top left of the screen. Every successive cascade or ‘tumble’ colours in a leaf. Four cascades award 14 free spins, but things get really interesting as the tumbles stack up.

The more successive cascades you land, the more free spins you receive. After six, Rainbow Wilds starts adding multipliers - up to a maximum of 20 free spins with a 6x multiplier for eight successive tumbles.

- Sticky wilds

The pot of gold sticky wilds only appears on reel three. When it does appear, it locks in place for all successive cascades, promising much larger winning combinations.

- Expanding wilds

This wild can appear at random on reels two to five. It expands to cover multiple positions and can even fill the entire reel.

Concluding thoughts

It is rare to find a slot that brings something new to the dynamic of free spins, so we loved how Rainbow Wilds combines cascading reels with free rounds. If cascades weren’t exciting enough already, they are even better now that landing enough in a row triggers free spins!

That all of this takes place against one of the most enchanting backdrops to be found on any slot distinguishes Rainbow Wilds from the assortment of other Irish-themed games available. It is difficult to imagine a more magical setting, and the music is truly sublime.

Rainbow Wilds is a delight, and Iron Dog has excelled itself in terms of both design and gameplay.

This slot has a great deal in common with the perennial Rainbow Riches slot, which you can revisit here at Slots Temple.

Disclaimer: Rainbow Wilds trademark / license is owned by irondog. This site is not endorsed by irondog.

* This button takes you to an external third-party partner real money casino website. Although we try and match games with Casinos that have them, we advise that you double-check the slot content on the casino website before making a deposit or signing up.

Slot Data
Slot Name: Rainbow Wilds
Software: irondog
RTP: 96.00%
Volatility: High volatility
Paylines: 1024
Reels: 5
Min Bet (all lines covered): £0.50 (GBP)
Max Bet: £50 (GBP)
Top Win: 300000
Features: Wild Symbol, Multiplier, Free Spins, Expanding Wilds, 5 Reels, Sticky Wilds, High volatility
UK Available in GB? Yes. irondog have a UKGC license and are allowed to offer their games at UK licensed casinos.


How do sticky wilds work?

Sticky wilds lock in place and hold their position through any subsequent cascades.

How volatile is Rainbow Wilds?

Rainbow Wilds is medium-high volatility.

How do free spins work on Rainbow Wilds?

Players are awarded free spins based on successive cascades. The giant clover to the top left of the screen tracks your progress.

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