Valve’s “flagship VR game,” Half-Life: Alyx was something of a surprise when it was leaked and then subsequently announced a few days ago. Now, developer Valve has fully revealed the PC game. The short version is that it’s a feature-length VR title set to launch early next year, and as the rumours suggested, it is indeed a prequel to the events of Half-Life 2.

Half-Life: Alyx is set to launch March 2020 for $59.99 USD. It will be free for owners of the Valve Index, but will be compatible with all PC VR headsets. It’s a “full-length virtual reality entry in the Half-Life series,” set between Half-Life and Half-Life 2, and it’s built in the Source 2 engine. You will play as Alyx Vance, and work alongside Eli to build the resistance against combine forces.

Valve says the title “was designed from the ground up for virtual reality and features all of the hallmarks of a classic Half-Life game: world exploration, puzzle solving, visceral combat, and an intricately woven story that connects it all with the characters iconic to the Half-Life universe.”