The world's 2.7 billion gamers will spend approximately $159.3 billion on games in 2020, growing 9.3% year-on-year, a report by market researcher Newzoo said. The figure is expected to cross $200 billion by 2023, growing at a compound annual growth rate of 8.3%. Maximum revenue may be generated on mobile games growing over 13.3% y-o-y to $77.2 billion in 2020.