40 Shining Rainbow Slot (EGT Digital) Demo & Review 2026

40 Shining Rainbow Review

EGT Digital once again ventures into the crowded Irish Luck genre, mixing fruit machine vibes with Emerald Isle charm. 40 Shining Rainbow features their signature retro design, with a minimalist presentation consisting of lush greenery and a rainbow. The leprechaun is only present on the stacked wild symbols in this game, humanizing the experience with his hat-duffing salutes. The soundtrack is, like you may have guessed, a traditional Celtic tune that keeps the atmosphere cheerful and lighthearted.

40 Shining Rainbow plays out on a 5x4 grid with 40 paylines, as indicated by the title. You win when you land 3 to 5 matching symbols across at least one of these paylines, starting from the leftmost reel. There are no royal symbols in this game, and the highest-value symbol is a red lucky number 7, followed by bells, grapes, watermelons, plums, oranges, lemons, and cherries. These symbols pay 1x to 12.5x your stake for 5 of a kind and 0.1x to 2x your stake for 3 of a kind. The leprechaun Wild symbol pays the same as the lucky number 7 if you land 5 wilds on a payline.

Speaking of, the leprechaun Wild symbol cannot land organically in 40 Shining Rainbow, and it’s the central feature of this game. The Wild only appears when you first land a stack of 4 matching pay symbols filling a reel. You then get a fully stacked Wild reel on the next spin as long as you don’t change your bet level. This can happen on up to all 5 reels simultaneously, which then delivers a full-screen wild win regardless of whether the initiating spin was a win or not. Wilds substitute for all pay symbols, but not for scatter symbols.

40 Shining Rainbow Reels Screen

The bonus round comes with 5 fixed free spins, and you cannot win extra spins or retrigger the feature. You get fully stacked wilds on reels 1, 3, and 5 during the whole feature, with the possibility of turning reels 2 and 4 into wild reels on any spin, too, if they first land a full stack of matching symbols. In addition, you can win 4 progressive jackpots in a randomly triggered pick bonus game and gamble all winnings in a double-or-nothing fashion. 40 Shining Rainbow is a medium volatility slot game, featuring an RTP of 96.3% (RTP ranges) and a max win of 500x your stake.

40 Shining Rainbow Features

Below, we will cover all the features and reveal all the details. However, we would also like to take this opportunity to remind you that the 40 Shining Rainbow free play demo game is available at the top of this page. Head up there after finishing the review and sample the features for yourself. Let’s go!

Stacked Reels & Wilds

Symbols tend to land stacked in this game, and if all 4 positions on any given reel consist of matching pay symbols, the reel gets a fiery frame. This indicates that the reel will land a fully stacked wild symbol on the next spin. However, keep in mind that you cannot change the bet level if you want to benefit from the upcoming full-reel wild symbol or symbols. The stacked wilds substitute for any pay symbol to help complete or improve wins.

Free Spins Bonus Round

Landing 3 Star scatter symbols anywhere on reels 1, 3, and 5 triggers the Bonus Round, awarding 5 free spins. Reels 1, 3, and 5 become stacked wild reels for the duration of the feature, and if you land 4 matching symbols on reels 2 and/or 4 on the triggering spin, you get stacked wilds on these reels too. During the bonus round, if you land 4 matching symbols on reels 2 and/or 4, you get a stacked wild on the next spin. If this happens on the final free spin, you get a stacked wild on the next base game spin.

Jackpot Feature

The Jackpot Feature triggers randomly in any stage of the game but always at the end of a spin. You will then pick from 15 treasure chests until you have revealed 3 matching jackpot symbols. The jackpot symbols are red, green, blue, or purple orbs, corresponding to the 4 progressive jackpots on display above the reels, namely the Mini, Minor, Major, and Grand jackpots. If you reveal a green, blue, or purple shamrock symbol, the jackpot is upgraded to the next level if you already have 3 matching jackpot symbols of the same color as the shamrock.

Gamble Feature (not UK)

When you win 35x your stake or less, you can enter the Gamble Feature if you wish. This is a standard double-or-nothing game, where you’ll guess the color of cards. Each correct guess doubles your winnings, but a single wrong guess means you lose it all. You can gamble each win up to 5 times via this feature, and your winning chances are 50% for each guess.

40 Shining Rainbow Win Screen

Blitz Play Mode

Blitz Play is a game mode with no reels, useful if you want to avoid the base game grind and plow through up to 100 spins in seconds. You can stop this mode automatically when you trigger the bonus round, and the result from each round is listed as a win or loss. The starting balance is also listed, as well as your new balance after the chosen number of Blitz Play “spins” has played out.

Theme & Graphics

40 Shining Rainbow plays out on the lush Emerald Isle, with the grid placed in a tranquil forest opening. A rainbow is barely visible in the background, and you’ll spin the reels accompanied by a cheerful Celtic tune. The leprechaun appears on the stacked wilds, doffing his hat in an old-school salute to greet you warmly. Other than that, the reels are filled with classic fruit machine symbols like lucky number 7s, bells, grapes, watermelons, plums, and oranges. The presentation is rendered with a clean, glossy sheen, giving the game a retro vibe.

40 Shining Rainbow Free Play

If you haven’t already, you can try the free 40 Shining Rainbow demo after reading our verdict of the game below. Then, you know what we think of this game, and the time has come to make up your own mind about it. We would, of course, love to hear what your thoughts are too, so don’t hesitate to express your view in the comments field. The 40 Shining Rainbow free play version is your risk-free testing ground, allowing you to explore the stacked wilds feature and the bonus round to see if this is something you want to pursue at one of our recommended casinos listed directly below the demo.

Pros and Cons of 40 Shining Rainbow

Our Verdict

The retro style of EGT Digital is something you either embrace or not, as they unapologetically churn out one fruit machine-style slot after another. 40 Shining Rainbow offers yet another trip to the Emerald Isle, and a dash of Irish Luck is never wrong as a confidence boost when taking on a new slot game. The peaceful pastoral setting is pleasant enough, with glossy fruit symbols gracing the reels like they have so many times before. If familiarity is what you’re after, you cannot go wrong with 40 Shining Rainbow.

The core mechanic of this game is admittedly charming, not least thanks to the politeness of the sharply dressed leprechaun. Instead of simply landing stacked wilds randomly, like in so many games, EGT Digital has decided to put their own spin on this common feature. Reels stacked with matching symbols serve as a harbinger of the stacked wilds that follow on the next spin. In one way it feels a bit pointless, but it does build a sense of anticipation that some players may enjoy. In my experience, after a while, once you relax into it, the feature does grow on you.

Since you know the full-reel wilds are coming, your brain will automatically try to anticipate what this means for your spin after the regular symbols have landed. It’s a kind of delayed reward sensation that makes the short wait for the wilds to fill the reels feel quite exquisite. Just remember to not change your bet level, as that means the wilds will not manifest on the next spin at all. Blitz Play mode is another interesting EGT-exclusive feature, at least if you want to trigger the bonus round as fast as possible.

Things predictably escalate when you trigger the bonus round, as you start each free spin with stacked wilds on reels 1, 3, and 5. Full-screen wild wins are possible thanks to the stacked-reels-turn-wild feature, awarding the max win of 500x your stake. This is hardly an overwhelming win cap in this day and age, and it makes the 40 Shining Rainbow slot less attractive than it could have been. All in all, EGT Digital has played it safe with this release, and some would perhaps say a bit too safe.