Sony Online Entertainment has today announced that their sandbox MMO Landmark is now available through Steam Early Access in its Closed Beta phase.

Originally available only to those who had purchase the selected Founder Pack's on the official website, the move to Steam will now open up further opportunity for testers to jump in. A price tag is still barring entry at this time though, with packs ranging from $19.99 through to $99.99, each with unique extras attached.

"We’ve been working hard on Landmark and are excited to share it with the Steam community," writes the Steam page. "Players are already creating spectacular objects and collaborating on massive building projects, all while being involved in the development process. We’d love to have you along for the ride!"

As usual with Steam Early Access titles, this one is still under development so expect bugs, crashes and round-the-clock updates. All this and more can be found on the Steam page including further screenshots and videos.