Half-Life 1 Beta but it's Garry's Mod

Porting stuff from Absolute Zero modSeriously, AZ is a great mod, they did huge amount of work recreating HL beta content. Sadly the mod died a year ago, so

Steam Workshop::Half-Life 2 Beta Weapons Pack V2

gm3_construction addon - Go-Mod for Half-Life - ModDB

Steam Workshop::half-life 2 beta + half life 1 alpha

A Bunch of Fans Tried to Make Half-Life 3 - IGN

Half-Life 2 Remake (imagined using Nvidia SSRTGI and Garry's mod

Half-Life 2 - Episode 1 Content - Gmod addon - ModDB

Half-Life 2 VR is here, for free, and it looks amazing

Gmod Mod Reviews: Half-life 2 Beta SNPC's!

The Weapon That Never Should've Been Cut From Half-Life 2

Every fucking kid that plays any Half-Life game for the first time

A little Half-Life 1 Thing I made in gmod : r/HalfLife