The original Rainbow Riches established a template that the franchise has riffed on for nearly two decades — Irish-luck theming, multi-feature bonus rounds, and a Big Bet mechanic that elevates the RTP at higher stakes. Reels of Gold is the franchise's most mechanically ambitious entry, swapping the single 5-reel structure for a dual-reel-set layout with colossal symbols (5x5 super-symbols that span the entire reel area) and multiple distinct bonus features triggered through different symbol combinations. The two titles share branding and audience but differ substantially in underlying maths.
RTP comparison
The original Rainbow Riches publishes at a variable RTP with operator-configurable tiers in standard mode and a Big Bet configuration that pushes the theoretical RTP up to 98% at higher stakes. Reels of Gold uses a similar variable-tier system in standard mode but does not have a directly comparable Big Bet equivalent — the headline RTP ceiling on Reels of Gold sits below the original's Big Bet maximum. For players who use Big Bet mode, the original wins on theoretical RTP. For standard-mode play, the two titles are comparable, with deployed RTP depending on operator tier selection.
Dual-reel mechanic
Reels of Gold's signature feature is the dual-reel-set layout. The screen presents two parallel 5-reel sets that spin simultaneously. Symbols on either reel set can trigger wins, and the colossal-symbol mechanic (5x5 super-symbols that fill an entire reel area when triggered) creates dramatic visual events when they fire. The hit frequency is higher than the original's standard structure thanks to the dual reel sets, but the upside concentration shifts — fewer extreme bonus events, more mid-tier wins. The session experience is more eventful but less explosive.
Bonus features
The original Rainbow Riches has three bonus features: Wishing Well (pick-one multiplier), Pots of Gold (rotating prize wheel), and Road to Riches (board-walk progression). Reels of Gold has its own set of features adapted to the dual-reel layout, with bonus rounds triggered by symbol combinations across both reel sets. The mechanical variety is comparable but presented differently — the original feels more arcade-classic, Reels of Gold feels more contemporary.
UK deployment
Both titles are widely available across UK casinos through Light & Wonder's distribution. The original Rainbow Riches has broader operator coverage thanks to its longer market presence and brand recognition. Reels of Gold's distribution is more concentrated at operators that specifically curate the Light & Wonder catalogue. Both titles' deployed RTP at any given casino should be verified via the in-game information panel.
Verdict
For Big Bet players, the original Rainbow Riches wins on theoretical RTP ceiling thanks to its 98% Big Bet configuration. For standard-mode play, the two titles are comparable, with Reels of Gold offering more contemporary mechanical complexity through its dual-reel layout. The original is the more iconic title; Reels of Gold is the more mechanically interesting modern entry.