Bonanza — Game Overview
Bonanza is the game that introduced the Megaways mechanic to the world. Released by Big Time Gaming in 2016, it was the first commercial deployment of BTG's patented random reel modifier system — a mechanic where the number of symbols displayed on each reel varies randomly on every spin, generating between 324 and 117,649 ways to win per spin. Before Megaways, the standard ceiling for ways-to-win slots was 243 ways on a 5×3 grid. Bonanza's 6-reel engine with variable reel heights shattered this ceiling and delivered a mathematical environment where every spin could feel structurally different from the one before.
The commercial impact was transformative for the industry. Big Time Gaming licenced the Megaways system to other studios beginning around 2017, and within five years over 100 game studios had released Megaways-branded titles. NetEnt, Red Tiger, Pragmatic Play, Blueprint, and dozens of smaller studios all produced Megaways games under licence. This level of mechanic adoption had no precedent in the online slot industry and generated substantial royalty revenues for BTG while creating an entirely new game category that consumers could recognise by name.
Bonanza itself uses a gold mining theme on a 6-reel grid with a horizontal mini-reel above the main playing area. The mini-reel shows letters spelling GOLD, and landing all four letters triggers free spins rather than using traditional scatter symbols. The free spins feature an unlimited win multiplier: starting at 1×, the multiplier increases by 1 with each Reaction (cascade) win and has no cap. This uncapped multiplier — combined with Megaways' variable ways-to-win and the cascade mechanic removing winning symbols for replacements — creates a theoretically unbounded win potential during sustained cascade sequences, which became the defining excitement of the game and a template that many subsequent Megaways releases would try to replicate.
Bonus Features
- ♦ Megaways random reel modifier: 2–7 symbols per reel each spin
- ♦ Reactions (cascading reels) on every win
- ♦ Free Spins triggered by collecting gold mine carts in horizontal reel above main grid
- ♦ Unlimited free spins multiplier that increases by 1× per Reaction win
- ♦ Never-ending multiplier with no cap — key to extreme win potential
Verdict
Bonanza's historical significance cannot be overstated — it literally invented a mechanic that transformed the slot industry. The unlimited free spins multiplier remains one of the most exciting bonus structures in slots: each cascading win adds 1× to an uncapped multiplier, theoretically allowing enormous wins if the multiplier climbs high enough during sustained cascades.