DepotDownloaderMod

IMPROTANT: This Tool require a manifest file to work Due to GetManifestRequestCode Verification.

And I add dump key support: When you are obtaining the game or manifest, the decryption key will be automatically extracted to the "keys.txt" file in the root directory. The format is {depotId};{keyHex}

Steam depot downloader utilizing the SteamKit2 library with depot keys support and many other features. Supports .NET 9.0

Works with keys from SteamTools:

https://bbs.steamtools.net/forum.php?mod=viewthread&tid=44&highlight=%E5%A4%A7%E5%AE%B6
https://bbs.steamtools.net/forum.php?mod=viewthread&tid=16&highlight=%E5%A4%A7%E5%AE%B6

• Update: Added Scripts\storage_depotdownloadermod.py to generate a bat file to download with depot keys and manifests from Many depot libraries.

• Update: You can decrypt the latest manifest in https://youxiou.com/thread-3.htm

Downloading one or all depots for an app with depot keys and manifest file

dotnet DepotDownloader.dll -app <id> -depotkeys <depotkeysfile> [-depot <id> [-manifest <id>]] -manifestfile <manifestfile>

For example: dotnet DepotDownloader.dll -app 730 -depot 731 -manifest 7617088375292372759 -depotkeys steam.keys -apptoken 1234567890123456789 -manifestfile 730_7617088375292372759.manifest

By default it will use anonymous account (view which apps are available on it here).

To use your account, specify the -username <username> parameter. Password will be asked interactively if you do not use specify the -password parameter.

Downloading a workshop item using pubfile id

./DepotDownloader -app <id> -pubfile <id> [-username <username> [-password <password>]]

For example: ./DepotDownloadermod -app 730 -pubfile 1885082371

Downloading a workshop item using ugc id

./DepotDownloader -app <id> -ugc <id> [-username <username> [-password <password>]]

For example: ./DepotDownloadermod -app 730 -ugc 770604181014286929

Parameters

Parameter	Description
-app <#>	the AppID to download.
-depot <#>	the DepotID to download.
-manifest <id>	manifest id of content to download (requires -depot, default: current for branch).
-ugc <#>	the UGC ID to download.
-branch <branchname>	download from specified branch if available (default: Public).
-branchpassword <pass>	branch password if applicable.
-all-platforms	downloads all platform-specific depots when -app is used.
-os <os>	the operating system for which to download the game (windows, macos or linux, default: OS the program is currently running on)
-osarch <arch>	the architecture for which to download the game (32 or 64, default: the host's architecture)
-all-archs	download all architecture-specific depots when -app is used.
-all-languages	download all language-specific depots when -app is used.
-language <lang>	the language for which to download the game (default: english)
-lowviolence	download low violence depots when -app is used.
-pubfile <#>	the PublishedFileId to download. (Will automatically resolve to UGC id)
-username <user>	the username of the account to login to for restricted content.
-password <pass>	the password of the account to login to for restricted content.
-qr	display a login QR code to be scanned with the Steam mobile app
-no-mobile	prefer entering a 2FA code instead of prompting to accept in the Steam mobile app.
-remember-password	if set, remember the password for subsequent logins of this user. (Use -username <username> -remember-password as login credentials)
-depotkeys <depotkeysfile>	a list of depot keys to use ('depotID;hexKey' per line)
-manifestfile <manifestfile>	Use Specified Manifest file from Steam.
-apptoken <apptoken>	Use Specified App Access Token
-packagetoken <packagetoken>	Use Specified Package Access Token
-dir <installdir>	the directory in which to place downloaded files.
-filelist <file.txt>	the name of a local file that contains a list of files to download (from the manifest). prefix file path with regex: if you want to match with regex. each file path should be on their own line.
-validate	Include checksum verification of files already downloaded.
-manifest-only	downloads a human readable manifest for any depots that would be downloaded.
-cellid <#>	the overridden CellID of the content server to download from.
-max-downloads <#>	maximum number of chunks to download concurrently. (default: 8).
-loginid <#>	a unique 32-bit integer Steam LogonID in decimal, required if running multiple instances of DepotDownloader concurrently
-use-lancache	forces downloads over the local network via a Lancache instance.
-debug	enable verbose debug logging.
-V or --version	print version and runtime.

Frequently Asked Questions

Why am I prompted to enter a 2-factor code every time I run the app?

Your 2-factor code authenticates a Steam session. You need to "remember" your session with -remember-password which persists the login key for your Steam session.

Can I run DepotDownloader while an account is already connected to Steam?

Any connection to Steam will be closed if they share a LoginID. You can specify a different LoginID with -loginid.

Why doesn't my password containing special characters work? Do I have to specify the password on the command line?

If you pass the -password parameter with a password that contains special characters, you will need to escape the command appropriately for the shell you are using. You do not have to include the -password parameter on the command line as long as you include a -username. You will be prompted to enter your password interactively.

Why am I getting slow download speeds and frequent connection timeouts?

When downloading old builds, cache server may not have the chunks readily available which makes downloading slower. Try increasing -max-downloads to saturate the network more.