Area 51 Alien for Sweet Half-Life addon - Mod DB

Replaces the R-A-C-E aliens with the greys seen in the game Area 51. Rights to this model and it

Steam Workshop::me

Half-Life DiamonD Alien NPCs Pack [Half-Life] [Mods]

Area 51 Windows game - ModDB

Freeware Games/FPS, /v/'s Recommended Games Wiki

Area 51 Remake mod for Half-Life 2 - ModDB

Residual Life

Half-Life Alpha Aliens [Half-Life] [Mods]

Steam Workshop::Addons I use 3

Alien Grunt - HD reskin image - Half-Life: Dark Matter mod for Half-Life - ModDB

Steam Workshop::HALF-LIFE 2 HD COLLECTION.

Residual Life