Early Access title Valheim has shifted more than one million copies in its first week on sale.

That's according to developer Iron Gate, who revealed the milestone in a post on Steam and thanked its audience for supporting the game. As well as strong sales, Valheim also hit 160,000 peak concurrent users on Steam and 127,000 peak viewers on Twitch in its first seven days in the wild.

The game's simultaneous user record has since risen to 188,840 peak users, according to SteamCharts. 

"Not only have we surpassed our first huge milestone together, but the way you have all rallied your weapons and embraced Valheim has been incredible," Iron Gate wrote. "In just over two years what our small yet formidable studio has been able to achieve is mind-blowing."

The studio continued: "Our inboxes are filled to the brims with fantastic feedback and suggestions and we are overjoyed to see how engaged our community is in Valheim’s development. We are currently hard at work addressing issues some of our players have reported to maximize the game experience for more vikings."

Valheim debuted on Steam on February 2nd and went straight to the top of the Steam charts in its first week. The fact that Iron Gate published a clear roadmap for content for the title no doubt helped consumers feel confident in buying an Early Access release.

This is also the second survival game success of 2021 following in the footsteps of Facepunch's Rust, which saw a surge in popularity at the start of the year thanks to some big-name streamers picking up the title. That debuted in Early Access back in 2013 ahead of a 2018 launch.