Which 'Half-Life' games to play before 'Half-Life: Alyx

With "Half-Life: Alyx" set for 2020, four previous titles remain essential: "Half-Life", "Half-Life 2" and "Half Life: Episode One and Two".

Half-Life: Alyx: What we know about Valve's upcoming full-length VR game

Half-Life: What You Should Know Before Alyx

Valve makes all Half-Life games free in anticipation of Alyx

Valve makes all Half-Life games free to play for a limited time

Black Mesa is the perfect way to get into Half-Life before Alyx - The Verge

All previous Half-Life games are now free on Steam in the run-up to Alyx's release

How to play to Half Life Alyx on Oculus Quest without a gaming computer, by JBern

Things to Know Before Starting - Half-Life: Alyx Guide - IGN

How to Buy the Best VR Headset to Play Half-Life: Alyx