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DepotDownloader

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Steam depot downloader utilizing the SteamKit2 library.

// repository documentation

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DepotDownloader
===============

Steam depot downloader utilizing the SteamKit2 library. Supports .NET 8.0

This program must be run from a console, it has no GUI.

## Installation

### Directly from GitHub

Download a binary from [the releases page](https://github.com/SteamRE/DepotDownloader/releases/latest).

### via Windows Package Manager CLI (aka winget)

On Windows, [winget](https://github.com/microsoft/winget-cli) users can download and install
the latest Terminal release by installing the `SteamRE.DepotDownloader`
package:

```powershell
winget install --exact --id SteamRE.DepotDownloader
```

### via Homebrew

On macOS, [Homebrew](https://brew.sh) users can download and install that latest release by running the following commands:

```shell
brew tap steamre/tools
brew install depotdownloader
```

## Usage

### Downloading one or all depots for an app
```powershell
./DepotDownloader -app <id> [-depot <id> [-manifest <id>]]
                 [-username <username> [-password <password>]] [other options]
```

For example: `./DepotDownloader -app 730 -depot 731 -manifest 7617088375292372759`

By default it will use anonymous account ([view which apps are available on it here](https://steamdb.info/sub/17906/)).

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

For example: `./DepotDownloader -app 730 -pubfile 1885082371`

### Downloading a workshop item using ugc id
```powershell
./DepotDownloader -app <id> -ugc <id> [-username <username> [-password <password>]]
```

For example: `./DepotDownloader -app 730 -ugc 770604181014286929`

## Parameters

#### Authentication

Parameter               | Description
----------------------- | -----------
`-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.
`-remember-password`    | if set, remember the password for subsequent logins of this user. (Use `-username <username> -remember-password` as login credentials)
`-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.
`-loginid <#>`          | a unique 32-bit integer Steam LogonID in decimal, required if running multiple instances of DepotDownloader concurrently.

#### Downloading

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.
`-pubfile <#>`           | the PublishedFileId to download. (Will automatically resolve to UGC id)
`-branch <branchname>`   | download from specified branch if available (default: Public).
`-branchpassword <pass>` | branch password if applicable.

#### Download configuration

Parameter               | Description
----------------------- | -----------
`-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.
`-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).
`-use-lancache`         | forces downloads over the local network via a Lancache instance.

#### Other

Parameter               | Description
----------------------- | -----------
`-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.

### I am getting error 401 or no manifest code returned for old manifest ids
Try logging in with a Steam account, this may happen when using anonymous account.

Steam allows developers to block downloading old manifests, in which case no manifest code is returned even when parameters appear correct.

### 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.

DepotDownloader

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