En Masse Entertainment has announced TERA, is the most-played MMORPG on Steam, based on maximum concurrent user statistics.
The free-to-play TERA: Fate of Arun launched through Steam on May 5 and according to the infographic, the MMORPG now has over 4.5 million players in North America and 20 million worldwide.
Other stats listed in the infographic: 6 million monsters killed; 70,000 dungeons cleared per day; and it has 97,847 active guilds.
Since launch, the average player count is 5,347 per day, with the record concurrent standing at 18,454 players.
Have a look at the graphic below.