Games market research firm Niko Partners has released a new report detailing the rise of mobile esports, and revenue generated by the mobile market. Niko, which specializes in the Asian games market, anticipates a “global boom in mobile esports” to take place over the next five years, expanding an already-lucrative mobile market that generated over $60 billion last year. According to the report, mobile esports games generated over $15 billion globally in 2018, and will only continue to grow in the coming years.

“Mobile esports will become the fastest sector of growth in the esports industry,” the report reads. “A mobile esports boom is poised to propel mobile esports from a niche industry to the mass market.”

Looking at the highest-grossing mobile games over the last two years seems to suggest that mobile esports is in a prime position to overtake PC esports in terms of popularity. According to Niko, income generated by these games already surpass the PC esports most recent valuation of $1.1 billion. The Chinese game Honor of Kings brought in $2.5 billion in 2018 alone, followed by Japan’s Monster Strike at $1.4 billion, and China’s QQ Speed at $7.8 million.

“The top 10 mobile esports titles in 2018 generated approximately $8.5 billion in total revenue, compared to $7.7 billion from those same titles in the prior year (up 10%),” the report states. “The growth is only slightly higher than that of PC esports, but it will continue.”

Total revenue from Honor of Kings has surpassed League of Legends, according to the report, making it the “largest esports game in the world by revenue.” It’s worth noting that seven of the top 10 mobile esports titles are from Asian developers, while this is true of only three of the top 10 PC esports titles.

“This shift suggests that mobile esports is part of a shifting balance in the global esports industry which favors the growing Asian games market.”

The enormous numbers brought in by mobile esports games can be traced back to a high penetration rate for mobile devices. According to the report, there are 3.6 billion mobile internet users globally, equating to a 47% penetration rate for mobile devices. Niko estimates that this rate will reach 61% by 2025. Considering this, mobile games simply have a larger potential user base than PC games. It also means that producing mobile esports tournaments will become more economically viable in the coming years.