Rainbow Rush (Slotmill) – Slot Review
Rainbow Rush by Slotmill draws inspiration from classic Irish folklore, centring its theme around luck, leprechauns, and the legendary treasure found at the end of a rainbow. The setting is filled with colourful rainbows, shining gold coins, and familiar symbols tied to prosperity and Celtic superstition.
The visual design adopts a bright and upbeat style, using vivid greens, rich gold tones, and multicoloured rainbow effects to create an inviting atmosphere. Icons such as clovers, horseshoes, lanterns, pipes, and playful leprechaun characters further emphasise the theme of fortune and charm. The reels are framed by a magical countryside landscape that adds to the game’s light-hearted and whimsical feel.
Overall, Rainbow Rush presents a lively and colourful interpretation of Irish-themed slot design, blending traditional lucky imagery with vibrant visuals to deliver an energetic and cheerful gaming experience.
Rainbow Rush is played on a 5×5 reel layout featuring 20 fixed pay lines. The slot offers high volatility, a 95.20% RTP, and a maximum win potential of up to 12,000x the total bet. Players can wager between £0.20 and £80 per spin.
Rainbow Rush Symbols & Pay Table
The game includes 15 symbols in total. Low-value symbols are represented by J, Q, K, and A, while premium symbols feature Smoking Pipes, Beers, Harps, Three-Leaf Clovers, Horseshoes, and Leprechauns. The Leprechaun symbol, along with all Wild symbols, is the highest-paying icon, awarding up to 20x for five-of-a-kind across a pay line. Special symbols include Bonus, Super Bonus, Wild, Expanding Wild, and Golden Expanding Wild symbols. Wilds substitute for all regular symbols, with each reel limited to one Wild symbol at a time.
Rainbow Rush Features & Mechanics
Expanding Wild
The Expanding Wild grows downward from its landing position to the bottom of the grid, acting as a Wild on every position it covers. For each additional symbol position covered, the multiplier increases by +1x, up to a maximum of 6x.
Golden Expanding Wild
The Golden Expanding Wild expands both upward and downward to cover the entire reel and always carries the maximum multiplier of 6x. If multiple expanded Wilds contribute to a winning combination, their multiplier values are combined before being applied to the total win.
Free Spins
Landing three Bonus symbols in the base game triggers the Free Spins feature, awarding 8 spins. During this feature, the frequency of Wild symbols increases. Landing a +1 symbol awards one additional free spin. If a Super Bonus symbol appears during Free Spins, the remaining spins are upgraded to Super Free Spins and two extra spins are awarded. The Free Spins feature can also be purchased directly for 100x the selected stake.
Super Free Spins
Landing two Bonus symbols and one Super Bonus symbol in the base game activates the Super Free Spins feature, awarding 8 Super Free Spins. During this mode, all Wilds become Golden Expanding Wilds. The +1 symbol can still award additional spins when it appears. Players may also purchase direct access to Super Free Spins for 400x the selected stake.
Conclusion
Rainbow Rush by SlotMill combines a vibrant Irish-themed presentation with engaging expanding Wild mechanics and strong multiplier potential. Its high volatility adds excitement for players chasing larger pay outs, while the bonus features provide additional opportunities to boost winnings. Overall, it’s a lively release that blends colourful visuals with rewarding gameplay potential. Be sure to try out this game on launch and check out our exclusive casino offers.