Big Time Gaming (BTG) was founded in Sydney, Australia in 2011 by Nik Robinson and Roger Donoghue. In 2015, BTG invented the Megaways™ mechanic — a dynamic reel system where the number of symbols per reel changes with every spin, creating up to 117,649 ways to win from a 6-reel setup. Bonanza (2016) was the first Megaways slot, becoming one of the most discussed and played online slots globally. BTG licences the Megaways mechanic to other studios including Pragmatic Play, Blueprint Gaming, and Red Tiger — generating a catalogue of hundreds of Megaways titles. BTG's own portfolio includes Extra Chilli, White Rabbit, Lil Devil, and Donuts. Evolution Gaming acquired BTG in 2021, maintaining it as an independent studio. Megaways titles account for a significant percentage of all online slot revenue globally.