Editing Steam (section)

==History==
Valve originally released Steam in 2003 with the purpose of updating their games and adding anti cheat to titles developed by them such as [https://wiki.teamfortress.com/wiki/Team_Fortress_Classic Team Fortress Classic], [https://combineoverwiki.net/wiki/Half-Life Half-Life (1998)], and [https://counterstrike.fandom.com/wiki/Counter-Strike?so=search Counter-Strike 1.6]. [https://combineoverwiki.net/wiki/Half-Life_2 Half-Life 2] was the first game to be offered digitally on Steam when it released on 16 November 2004, followed by [https://combineoverwiki.net/wiki/Half-Life_2:_Deathmatch Half-Life 2 Deathmatch]. The [https://www.combineoverwiki.net/wiki/Source_SDK Source SDK] released on 30 November 2004, allowing fans to create mods or games using the [https://developer.valvesoftware.com/wiki/Source Source Engine.] Valve allowed third party developers to sell games on Steam during late 2005, marking Steam's transition into a digital distribution service.