Riot's MOBA League of Legends is now peaking at 8 million concurrent daily users.
The number was reveal via an update on the game's website.
"That makes League the biggest PC game in the world - it's even bigger than the top ten games on Steam combined," said the company.
Though 8 million concurrent players is a record for League of Legends, Epic Games recorded 8.3 million players at the same time for Fortnite last November.
This was up from the 3.4 million users it had in February 2018.
League of Legends celebrates its 10th anniversary this year - Riot Games is holding live streams and events on October 15th to mark the occasion.
"In the 10th Anniversary Edition Riot Pls, we'll take a look back at our favourite League moments and share a glimpse of the future, including a first look at this year's preseason changes and TFT's next big content update," said Riot.