Big Valve only took place on Go-Mod a sandbox mod for Half-Life. Big Valve came from a Early Tech Demo for Half-Life by 1PlayerD on ModDB, the model used was Mr. Valve model from the Tech Demo, since Mr. Valve was so big than other things he could be bigger than anything such as Chuck Norris, a House, or the World!There would be text stating that he is bigger than the object/person.The Original by 1PlayerD can be found on ModDB after the Dev pictures the first picture from Go-Mod 3.0. After 11 days of the Big Valve Meme, the Devs of Go-Mod already planned to add the Big Valve Player Model by uaredead to Go-Mod Patch 5, 1PlayerD got in touch with one of the Devs and asked them to add the spawnable Big Valve he had in his Beta Pack, they agreed to do so,so the Go-Mod Dev added to patch 5 a spawnable Big Valve Model and a Big Valve Player Model originally made by uaredead, so users don't have to download the Beta Pack made by 1PlayerD which contained 6 NPCs from Half-Life Beta so they can make their version of the pictures.