Play Carnival Queen for Free in Demo Mode

by Thunderkick

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Carnival Queen review

Return to player
Game technology
Game provider
Very low
Configurable winlines
Progressive Jackpot
Gamble feature

Quick verdict

Light hearted, festive and set to a bouncing bass backing track, Carnival Queen is a fun romp despite an average RTP (96.1%) and middling volatility.


Guru Score

Theme and Storyline

Rainbow Riches Pick’n’Mix takes the original Rainbow Riches slot – with its leprechaun imagery and idealised vision of an Ireland inhabited entirely by piskies and fae – and adds in a slew of extra bonus games to keep things interesting.

The theme is pretty sparsely fleshed out with the symbols on the main reels being almost entirely ace to ten symbols and a set of leprechauns. The background is a version of the Irish countryside rendered in candy kingdom colours with perfect red and white toadstools alongside a golden road.

Graphics, Sounds and Animations

Despite the sparsity of thematic elements, the graphics for Rainbow Riches Pick’n’Mix are excellent. The visuals have a high definition glossiness and a visual unity that sells the player on the world despite how few details the game offers.

The combination of animations and sound keep the win and spin cycles interesting and the musical accompaniment is an almost hilariously on the nose Irish fiddle playing away at a foot-stomping tune.

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The base game is a five by three slot with twenty win lines.

Before play kicks off, the player is asked to choose up to three of the five possible bonus games. This will affect what bonuses they can hit on the reels and what bonuses are available in the Big Bet version of the game.

There is also a Big Bet version of the game in which players spin a wheel for their chosen bonus. If the wheel lands on the rainbow, the player gets to play that bonus. If it doesn’t, they are awarded a Free Spin bonus with five spins.

The effective bet per line at which the bonuses are played in Big Bet mode remains the same even if you bet more. Instead of adjusting the bet, the chance of you hitting the bonus increases the higher your bet.

Wilds, Bonuses and Free Spins

The Wild symbol substitutes for all symbols except the Bonus symbol.

Depending on which bonuses the player chooses at the start of the game, there will be up to three types of Bonus Symbols. You must hit three or more identical Bonus symbols to trigger that bonus.

The choice of bonus makes each game feel unique and affects both the base and Big Bet versions of the game. There are five bonus games to choose from:

The range of bonuses is the main draw of this slot machine.

Bet Sizes, RTP and Variance

The base game has a two-tiered return to player or 94% for a bet per spin of under $/£/€1.00 and 96% for bets over that amount. One of the huge upsides of Rainbow Riches, however, is that the return to player jumps to 98.00% if the player only opts for the Big Bet option.

At Casino Guru, we use roughly 96% as our yardstick for average, so you can see how your bankroll may affect how likely we are to recommend this slot to you.

The range of bets on the site we tested ran from a minimum bet per spin of $/£/€0.20 up to a maximum of $/£/€500.00 per spin. This enormous range should please most high rollers and few people will be left out by a minimum bet of less than a quarter.

The volatility of this game is medium, which makes it a weak match for our preferred slot machine strategies which favour higher-volatility slots.


Rainbow Riches Pick’n’Mix is a great variant on an already solid slot. The main appeal is the range of bonuses which keep things interesting and the option to play the Big Bet version with its high RTP.

We love the gameplay and style and strongly recommend this to players who can take advantage of the higher two of the three RTP tiers.

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