Valve is getting ready for the March release of Half-Life: Alyx, their full-length VR game that’s not Half-Life 3.

To get ready for Half-Life: Alyx, all Half-Life games are free to play for Steam users until the launch of Alyx. Free games included in the series are:

Half-Life

Half-Life 2

Half-Life 2: Episode One

Half-Life 2: Episode Two

If you don’t already have Steam, you can download it here and journey into Dr. Gordon Freeman’s mission to stop the alien invasion that his lab enabled when they ruptured a portal to another world.

Half-Life is a sci-fi, action-adventure series that combines FPS combat, puzzle-solving, and excellent storytelling. For most of the series, you play as Freeman. But in Half-Life-Alyx, you will play as Freeman’s ally, Alyx, in events that take place just before Half-Life 2.

There’s still no official word on when or if there will be a Half-Life 3. But during Geoff Keighley’s talk with Half-Life developers, Half-Life 3 did not sound as if it were out of the question.

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