GTA Maps in Garry's Mod with Infinite Map Base

Universal VGUI Spawn Menu mod for Half-Life 2 - ModDB

Garry's Mod Map Pack #14 (Map) for Garry's Mod

ENTIRE GTA SAN ANDREAS MAP IN GMOD! EXPLORATION + PERFORMANCE TEST (ALSO INCLUDES VICE CITY AND LC)

GTA: San Andreas Interactive Map

GTA V map but no mountains : r/gtaonline

Steam Workshop::Infinite Map With Space, ABANDONED

Dan Smith on X: As a test, I ported the entire map of GTA3 to Garry's Mod, It extends past the hammer grid but with a little hackyness it all works. /

Why is Hitman called a sandbox game when it doesn't have important features of a sandbox genre? - Quora

Steam Workshop::Stunning Gmod Maps!

GMod Maps Are Getting INSANE

Gmod Key and Lock System + Door Manager - Addon