SteamDepotDownloaderGUI

When you download a game on Steam, those files are delivered to your from Depots, which is the platform's way of making the whole process streamlined and efficient. In case you wish to download the files directly from a depot, without interacting with the Steam interface, you might want to try something like SteamDepotDownloaderGUI, which is a tool that was conceived for such a purpose.

The main benefit to doing things this way is the ability to download older versions of games, which can be useful for some users. For instance, if there's a game-breaking bug, or you're a speedrunner who can only achieve a certain time on a specific game version, such a tool makes downloading that version easier.

The details required for the download to proceed are straightforward: you'll need to insert your username and password, as well as a few IDs pertaining to the game whose files you wish to download. Specifically, the App, Depot, and Manifest IDs will be required. You can find those by just looking the game up on the Steam Database.

Before downloading, you can select the operating system for your files: macOS is not yet implemented, but Windows, and several Linux terminals, such as KDE, Gnome, Xfce, and Terminator are supported.