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+DepotDownloader
+===============
+
+Steam depot downloader utilizing the SteamKit2 library. Supports .NET and Mono
+
+Use: depotdownloader <parameters> [optional parameters]
+
+Parameters:
+  -app #        - the AppID to download.
+
+Optional Parameters:
+  -depot #      - the DepotID to download.
+  -cellid #     - the overridden CellID of the content server to download from.
+  -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.
+  -dir installdir     - the directory in which to place downloaded files.
+  -filelist filename.txt    - a list of files to download (from the manifest). Can optionally use regex to download only certain files.
+  -all-platforms      - downloads all platform-specific depots when -app is used.
+  -manifest-only      - downloads a human readable manifest for any depots that would be downloaded.
+  -beta branchname    - download from specified branch if available.
+  -betapassword pass  - branch password if applicable.
+  -manifest manifestid  - manifest id of content to download (requires -depot).