The specific string "v1.46.2.13s-P2P.torrent" indicates a peer-to-peer distribution of the game files.
If you own the game on Steam, your client will automatically update to the latest stable version (currently well past 1.50). American Truck Simulator v1.46.2.13s-P2P.torrent
This generally identifies files shared by independent groups or individuals rather than official distribution platforms like Steam . Safety and Official Access The specific string "v1