Half-Life: Alyx is set to launch in March 2020 for VR headsets, and if you are a stranger to the franchise, Valve is offering all of them for free until Alyx is released.
If you are among the nine people who never played a Half-Life game, now is your chance. To celebrate the coming launch of Half-Life: Alyx, Valve is letting everyone get in on the fun.
Until Alyx is released, you can play for free the original Half-Life (Source version), both expansions, Blue Shift and Opposing Force, Half-Life 2 and both episode that followed. Half-Life 2: Lost Coast, the HDR tech demo, isn’t part of the deal.
Essentially, you have a two-month trial, you aren’t getting them permanently. So, take this opportunity to get ready for a brand new Half-Life game.