Proto:Half-Life 2 (Windows)/September 26th 2003 Build/Used

Half-Life: Alyx review - Your time comes around again

Clues point to Half-Life: Alyx being more than than just a prequel

Alyx Vance from Half-Life 2

Now modders are using Half-Life: Alyx to get Half-Life 2 working in VR

Here's Half-Life 2 running in VR, using Half-Life: Alyx's engine

Half-Life: Alyx] Vanilla Combine Soldier found within the Half-Life: Alyx file directory ported to Half-Life 2. Available for download and installation for Half-Life 2. (Link in the Comments) : r/HalfLife

Half-Life: Alyx themed Alyx addon - ModDB

Metropolice comparasion - Half Life Alyx vs Half Life 2

Half life 2: Episode 3 – January 2012 (Part 1) – Mike Sharpe, Writer

Alyx Vance - Combine OverWiki, the original Half-Life wiki and Portal wiki