Seven cloud-topped reels float on a 7 × 6 grid. Wins form in clusters of five matching candies, cascade away, and fresh symbols drop. Hacksaw caps potential at 5,000 × stake, yet medium volatility tempers the ride. The Double Rainbow slot balances steady action with sharp bursts of color-coded multipliers.

How Every Reel Gets Its Color

Each reel carries one shade of the rainbow. A Cloud symbol landing on that reel assigns a reel multiplier of the same hue. Hit a red multiplier, and any red-candy cluster anywhere on the grid receives the boost. That separation between reel and win location keeps the pace brisk.

Two Cloud Species

Normal Cloud – adds ×2, ×3, ×4, ×5, ×10, ×15, ×25, ×50, ×100, or ×250 to its reel and awards one free extra spin with all active reels locked.
Double Rainbow Cloud – same multiplier scale, but shares the value with every other active reel and grants three free extra spins.

From Single Hue to Full Spectrum

Activate all seven reel multipliers at once and the Full Rainbow triggers. A second-level modifier of ×2 – ×10 multiplies every stored reel value, then five complimentary spins keep the expanded grid live. This chain is where test sessions often spike; seeing ×250 land, then doubled, can push combined multipliers beyond ×600.

Pay Symbols, Cluster by Cluster

Candies in Cluster	Payout (× stake)
5	0.10
6	0.20
7	0.40
8	0.60
9	0.80
10	1.50
11	3.00
12	5.00
13	10.00
14	20.00
15 +	50.00

Wild bolts substitute but carry no line value. That concludes the second numeric table.

Buying a Shortcut to the Clouds

Jurisdiction permitting, two purchase buttons sit below the spin key. Ten times stake buys one Rainbow Spin: at least three reels start active with multipliers beginning at ×4. Fifty times stake buys four extra spins under the same head-start. RTP nudges to 96.41 % for the small buy, 96.27 % for the big.

Hands-On Session Notes

Load the Double Rainbow demo first; the mechanic needs a feel for pace. On average, a basic Cloud appears every 9–12 paid spins. Doubling Clouds are rarer, roughly one in 50, yet they define most mid-level payouts. In the longest dry stretch recorded (186 spins), only three Clouds dropped, underscoring the medium swing profile.

Quick Play Routine

Open the paytable and note current RTP; decline if lower than 95 %.
Start at 0.40 stake, raise only after a Full Rainbow hit resets the board.

Context in the Rainbow Sub-Genre

Fans of high-contrast volatility may drift toward Super Rainbow Megaways once they master this grid. Prefer simpler fixed lines? Rainbow Reels offers five-of-a-kind wins without cascading complexity. For more experimental layouts, Rainbow Ray mixes expanding wilds with colour triggers on a hex grid.

Outside the pure colour motif, the progressive trail mechanic in Emerald King Rainbow Road shows how multipliers can merge with respin ladders. Meanwhile, time-based boosters inside Rainbow Mania demonstrate another way to stretch mid-volatility maths. Finally, narrative lovers should sample Rainbow Odyssey, where story chapters unlock after hitting symbol thresholds, proof the genre is widening fast.

Numbers Over Fluff

Hacksaw keeps the math clean: uniform symbol values, transparent multiplier ladders, capped odds. The absence of scatter-triggered free spins streamlines flow; everything rides on Clouds. Results lean toward streaks, extended neutral patches, then clusters of boosted payouts suited to bankrolls built for swing rather than grind.

Closing Line

Colour, clarity, and controlled volatility make Double Rainbow an easy recommendation for cluster-pay newcomers who want data-driven mechanics without maze-like bonus trees. Its compact rule set hides depth, and once all seven hues glow at once, the reason for its popularity becomes obvious in a single cascade.