Double Rainbow Slot for Free – Demo & Review

Double Rainbow
Double Rainbow
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Updated: 02.12.2025
Reviewed by: Najla Al Ruwaili
This candy-themed Double Rainbow slot, Hacksaw Gaming's 2024 release, transports players to a whimsical sky filled with pastel clouds and vibrant rainbows. It features seven reels on a 6-row grid with cluster pays mechanics, tumbling multipliers up to 250x, free spins with dynamic reel multipliers, and innovative rainbow-colored reel mechanics. Play the Double Rainbow demo for free and discover why this colorful take on cluster-pay slots stands out among fun-themed gaming experiences.
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In this review
  1. General information about Double Rainbow
  2. Rating of Double Rainbow compared to other slots
  3. First Impressions of Double Rainbow
  4. Double Rainbow RTP & Volatility Explained
  5. Bonus Features
  6. Explanation of Symbols and Features
  7. Comparison of Double Rainbow with Other Slots
  8. Slotsjudge's verdict on the game Double Rainbow
  9. FAQ
  10. More Slots Similar to Double Rainbow
General information about Double Rainbow slot

General information about Double Rainbow

Rating by Najla Al Ruwaili:
7.5
User's Rating: Not rated yet
Write a review +25 ES points
  • Release Date:
    09.03.2022
  • Volatility:
    Medium
  • RTP:
    96.4%
  • Multiplier:
    Yes
  • Max. win:
    5,000x
  • Bonus game:
    No
  • Free spins:
    Yes
  • Scatter Symbol:
    No
  • Wild symbol:
    Yes
  • Symbol Stacked:
    No
  • Jackpot Game:
    No
  • Slot lines:
    Cluster Pays
  • Slot reels:
    7
  • Layout:
    7-6
  • Stakes range ($/€):
    0.1 to 200
  • Slot Theme:
    Heavens, rainbow
  • Technology:
    HTML5, JS
More infoLess info

Rating of Double Rainbow compared to other slots

Double Rainbow holds its own in the candy-themed slot category. While the whimsical aesthetic differs sharply from Hacksaw's edgier releases like Chaos Crew, it appeals to players seeking approachable entertainment without sacrificing mechanical depth. The 96.38% RTP exceeds industry standards slightly, outperforming many competitors like Rainbow Riches (96%). The cluster pays with tumbling mechanics give it an advantage over traditional payline-based candy slots. The game excels in visual polish and innovative reel-specific multipliers, though it falls short on maximum win potential compared to titles like Chaos Crew (20,000x+). Direct competitors include Dazzle Me by NetEnt and Rainbow Riches by Barcrest, which offer similar colorful themes but rely on different mechanics and volatility approaches. For medium-volatility players, Double Rainbow's balanced approach proves competitive.

First Impressions of Double Rainbow

Double Rainbow immediately grabbed our attention with its unapologetic burst of color and charm. The upbeat soundtrack combined with smooth cascading animations creates an inviting atmosphere that feels genuinely enjoyable rather than saccharine. The graphics land solidly by 2024 standards—each candy symbol animates with personality, and the unicorn character adds personality without overdoing the childish angle. What impressed us most was the responsiveness; every spin feels snappy, and bonus features trigger frequently enough to maintain engagement. It's clearly designed for players who want colorful entertainment without the brutal variance of Hacksaw's harder-hitting titles. The cascading wins feel rewarding even in base game, which sets a strong foundation for longer sessions.

Double Rainbow Gameplay

Double Rainbow RTP & Volatility Explained

Double Rainbow operates at 96.38% RTP, which sits above the industry average and rewards patient players with solid long-term returns. The medium volatility creates a balanced experience—you won't face extended droughts between wins, but you won't hit massive payouts constantly either. The multiplier system adds genuine unpredictability: cloud symbols landing on different reels trigger varying multiplier strengths (2x to 250x), meaning each spin carries potential for surprise escalation. The tumble mechanic compounds this excitement, as consecutive cascades multiply gains rapidly. This combination makes Double Rainbow ideal for players seeking regular wins paired with occasional dramatic moments—the sweet spot between boring consistency and frustrating variance.

Bonus Features

Double Rainbow's bonus mechanics revolve around cloud symbols and the innovative Full Rainbow feature. The core system works through two cloud types, each generating different outcomes.

Normal clouds activate a reel's multiplier (ranging from 2x up to 250x) and award one additional spin. Double Rainbow clouds—the rarer variant—apply their multiplier across all currently active reels simultaneously and grant three extra spins, creating compound multiplier effects.

Landing these clouds consistently was our experience during play; they appeared frequently enough to feel rewarding without feeling handed out arbitrarily. The Full Rainbow feature activates when all seven reels hold active multipliers. This triggers a powerful multiplier boost (2x to 10x) applied across all active reel multipliers, plus five free spins where all reels remain active. We triggered this feature multiple times across test sessions, and each occurrence delivered genuinely thrilling moments.

The bonus buy feature offers two tiers: a 10x cost for guaranteed activation with three reels at 4x multipliers, or 50x cost for four guaranteed activations with more free spins attached. These feel positioned toward impatient players rather than necessary components.

Double Rainbow bonus

Explanation of Symbols and Features

The symbol palette reflects the candy-party aesthetic. High-value symbols include the rainbow-haired unicorn (the standout character), various colorful candies styled as lollipops and gumdrops, and cloud formations. Card values J, Q, K, and A appear in pastel colors maintaining visual consistency.

Scatter symbols trigger free spins and function independently from the cluster system. Wild symbols substitute for regular symbols naturally or through cloud-activated reel multipliers. The cluster formation requires five or more matching symbols connected horizontally or vertically to generate payouts. The 7x6 grid offers substantial symbol combinations—the system avoids feeling restrictive even when matching symbols feel elusive.

Double Rainbow Game Info

Comparison of Double Rainbow with Other Slots

Parameter Double Rainbow Chaos Crew Dork Unit Wanted Dead or a Wild
Release Year 2024 2020 2023 2022
RTP 96.38% 96.3% 96%+ 96.38%
Volatility Medium (3/5) Very High (5/5) Medium High (4/5)
Max Win 5,000x 20,000x+ 10,000x 12,500x
Reels/Grid 7×6 5×5 Variable 5×5
Theme Candy/Fantasy Street/Punk Comedy Western
Free Spins Yes Yes Yes Yes
Mobile Yes Yes Yes Yes
Provider Hacksaw Gaming Hacksaw Gaming Hacksaw Gaming Hacksaw Gaming

Slotsjudge's verdict on the game Double Rainbow

Double Rainbow succeeds as a modern, accessible slot that prioritizes entertainment value and mechanical innovation over brutality. The game's defining strength is its unique color-coded multiplier system paired with genuine visual appeal. The cluster mechanic combined with tumble multipliers (reaching 1,024x through cascades) delivers legitimate excitement, while marked reel mechanics add variety to gameplay.

The conservative 5,000x maximum win may disappoint volatility chasers accustomed to Hacksaw's harder releases. The medium volatility hits the mark for players avoiding both snooze-inducing consistency and soul-crushing variance, though serious thrill-seekers might find it underwhelming.

This slot suits players who appreciate: candy/fantasy themes, medium volatility gaming, innovative multiplier systems, Hacksaw Gaming's design philosophy, and mobile-first experiences. Best for casual to intermediate players seeking 20-40 minute sessions without emotional extremes. Not recommended for hardcore volatility hunters or those seeking five-figure maximum wins.

Najla Al Ruwaili
Najla Al Ruwaili
Writer and Editor, Casino Review Specialist
Merges journalistic experience with deep understanding of the online casino industry to create reliable reviews and guides.

8 articles

FAQ

What is the RTP of Double Rainbow slot?

Double Rainbow carries a 96.38% RTP, considered above average. Alternative versions at lower RTPs exist for certain jurisdictions.

Can I play Double Rainbow for free?

Yes, most online casinos and slot review sites offer free demo play without deposits required. Test gameplay risk-free before committing real money.

How do I trigger the free spins bonus?

The Full Rainbow feature activates when all seven reels have active multipliers simultaneously. Free spins quantity depends on which cloud symbols landed. Landing three scatters also triggers spins in certain configurations.

What's the maximum win potential?

The game offers up to 5,000x your stake through optimal cascading combinations paired with multiplier clouds during extended sequences.

Is Double Rainbow different from other Hacksaw slots?

Yes—the candy theme represents a departure from Hacksaw's darker, edgier aesthetic. Reel-specific multipliers and the Full Rainbow feature offer mechanical depth not present in most competing slots, though maximum win potential remains conservative compared to Chaos Crew or Wanted Dead or a Wild.

How often do bonus features trigger?

During our testing, cloud symbols appeared regularly (roughly every 8-15 spins), making bonus features a consistent part of gameplay rather than a rare occurrence. The frequency balanced well for sustained engagement.

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