Version numbers of GTA V on PC typically followed this structure: 1.0.xxx.y where xxx is the build number and y is a hotfix digit. 350.2 indicates build 350, second hotfix. Later builds reached into the 1000s (e.g., 1.0.1180.2 for the Doomsday Heist update in 2017).
The 3DMGAME-Grand.Theft.Auto.V.Update.5-v1.0.350.2, released in 2015 by the 3DM group, was a significant early PC update designed to fix crashes and provide a foundation for early modding. While the game has since progressed to version 1.71 with major graphical and content updates, this legacy build is sometimes used for specific, older modding purposes. For comprehensive details on the evolution of game updates, visit GTA Wiki . GTAV Title Update 1.72 Notes (PS5 / PS4 / Xbox Series X 3DMGAME-Grand.Theft.Auto.V.Update.5-v1.0.350.2-...
The string you provided — 3DMGAME-Grand.Theft.Auto.V.Update.5-v1.0.350.2-... — is a typical filename pattern for a for Grand Theft Auto V , specifically heading toward version 1.0.350.2 (a build from around late 2015 to early 2016 in the warez scene). Version numbers of GTA V on PC typically