What are the best-selling games on Steam in 2021?

Steam has released a list of the best games of the year last year. The six categories are: Most Selling, Most Popular, Most Played, Early Access, Best VR, and Controller Support. All categories, except for Most Plays and Controller Support, were selected based on the total revenue earned by the game in one year on Steam. The most played games are the games with the highest number of concurrent players, followed by popular releases.