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Big Time Gaming was founded in Sydney in 2011 and acquired by Evolution in 2021 for €450m. The studio's cultural impact is enormously disproportionate to its output — BTG invented Megaways, the variable-reel mechanic now licensed to over 100 studios and applied to more than 500 slots across the industry.
The original Megaways titles — Bonanza, Danger High Voltage, White Rabbit, Extra Chilli, Who Wants To Be A Millionaire Megaways — remain the reference implementations of the format. Volatility is high to extreme, max wins routinely clear 20,000x, and BTG's own releases carry an RTP band of 96-96.5%.
BTG also runs the Megaclusters mechanic (splitting cluster symbols into 4x smaller symbols) which powers the Cosmic Cash and Rocket Fellas Inc. lines.
We haven't yet flagged any tracked casino as carrying Big Time Gaming in its top-provider mix. Check back — we verify catalogues each month.
About the author

Peter Fryers
Lead Casino Analyst
Peter has spent over a decade in the iGaming industry, covering casino operations, bonus analysis, and regulatory compliance. He has direct experience evaluating operator licences, bonus mathematics, and player dispute processes. Peter leads our casino review programme and is responsible for the editorial ratings across all casino listings.
Areas of expertise: Casino Reviews, Operator Analysis, Bonus Evaluation, Licensing & Regulation.