Double Rainbow by Hacksaw Gaming uses a 6-7 layout with a presentation that emphasizes sky blue, star motifs, and rainbow imagery. The themes include White, Sky, Sky blue, Star, Rainbow, and Unicorns.
Core mechanics include cascading and avalanche symbol drops, cluster pays, and wilds. The game also offers Additional Free Spins and a Buy Feature, with a Random multiplier, Respins, and a Bonus Bet. (Free Spins award extra spins without additional stake.) The overall design is geared toward clear readability despite multiple features.
Betting range is 0.2 to 100 USD. The top win is 21x, the hit frequency is 39%, RTP is 95%, and volatility is medium. These factors together define the game's basic risk-reward profile and pacing.