Publisher Perfect World Entertainment and developer Gunfire Games have shared a new trailer for Remnant: From the Ashes.

Featured above, the new trailer introduces the “Leto’s Lab” dungeon, which is now available as a free update.

Here’s a rundown on the new dungeon:

The Leto’s Lab dungeon can be found dynamically spawned in Earth through the main campaign and Adventure Mode. Players will be challenged by a unique puzzle as you attempt to escape the lab and uncover the dark secrets of Dr. Leto Apostolakis’ experiments. Fight your way through new Splitter enemies and defeat the Riphide boss to receive a Displacement Crystal. Turn it in to McCabe at Ward 13 to craft your very own Flicker Cloak Mod.

Try and locate the secret Leto’s armor set hidden somewhere in the lab. It’ll take a sharp eye, steady aim, and a little luck to make it out alive!

Leto’s Lab takes you on a quest through Research Station Alpha. The lab was established to research the mysterious red crystals, with the initial goal of using them as a source of infinite energy. The head researcher, Leto Apostolakis, theorized the crystals could be used for something else – to bridge space-time for near instantaneous travel. He was the one to unlock the World Stone on Ward 16 allowing mankind to take their first fledgling trips to other worlds. Leto’s experiments quickly diverged from their initial goal as he started using the World Stones to fuel a series of dubious experiments. The lab continued operating for months after the Root invaded, but was ultimately forced to evacuate when one of Leto’s experiments went awry.

Remnant: From the Ashes is available now for Windows PC, PlayStation 4, and Xbox One.