Steam started out as a Valve first-party service designed to automatically update the company's games for PC players. Since 2005, though, it's expanded to become the world's biggest digital games store for PC gamers, with one of the widest selections of games available anywhere. Fans can also play many of these titles on the go, thanks to 2022's release of the Steam Deck.
Source：https://www.cbr.com/steam-most-played-games-all-time/
