Fans of the long-in-development Half-Life remake by Crowbar Collective, Black Mesa, have understandably been waiting for a long time for the game to finally be completed. The Xen trailer last year gave us a taste of things to come, and now, three levels of Xen are available for you to play (albeit in beta form)!

“The purpose of this beta is to collect bugs and feedback on a range of different computers,” reads the post on the Black Mesa Steam page. “We have made significant improvements and changes to the Source engine, and we want the game to run as smoothly as possible. If you want to be on the bleeding edge of testing, opt into this beta. If you want the polished, complete Xen experience, you should wait. It won’t be long!”

Understandably, there are a few issues with the beta, notably some framerates issues while playing in 4K, issues with ragdolls in water, missing collisions with certain plants and roots in the swamp, and a few other little bugs, so as the post implies, don’t jump in thinking everything’s polished.

If you can’t wait, you can snag the beta from the game’s Steam page (where it’s currently enjoying a discount, courtesy of Steam’s Summer Sale).