diff --git a/DepotDownloader/ContentDownloader.cs b/DepotDownloader/ContentDownloader.cs
index 30c0c54..b1b1441 100644
--- a/DepotDownloader/ContentDownloader.cs
+++ b/DepotDownloader/ContentDownloader.cs
@@ -476,7 +476,8 @@ namespace DepotDownloader
                                         continue;
                                 }
 
-                                if (depotConfig["osarch"] != KeyValue.Invalid &&
+                                if (!Config.DownloadAllArchs &&
+                                    depotConfig["osarch"] != KeyValue.Invalid &&
                                     !string.IsNullOrWhiteSpace(depotConfig["osarch"].Value))
                                 {
                                     var depotArch = depotConfig["osarch"].Value;
diff --git a/DepotDownloader/DownloadConfig.cs b/DepotDownloader/DownloadConfig.cs
index 97f2bad..c0d4f6c 100644
--- a/DepotDownloader/DownloadConfig.cs
+++ b/DepotDownloader/DownloadConfig.cs
@@ -10,6 +10,7 @@ namespace DepotDownloader
     {
         public int CellID { get; set; }
         public bool DownloadAllPlatforms { get; set; }
+        public bool DownloadAllArchs { get; set; }
         public bool DownloadAllLanguages { get; set; }
         public bool DownloadManifestOnly { get; set; }
         public string InstallDirectory { get; set; }
diff --git a/DepotDownloader/Program.cs b/DepotDownloader/Program.cs
index b44b79c..569c489 100644
--- a/DepotDownloader/Program.cs
+++ b/DepotDownloader/Program.cs
@@ -211,6 +211,7 @@ namespace DepotDownloader
                 ContentDownloader.Config.BetaPassword = GetParameter<string>(args, "-betapassword");
 
                 ContentDownloader.Config.DownloadAllPlatforms = HasParameter(args, "-all-platforms");
+
                 var os = GetParameter<string>(args, "-os");
 
                 if (ContentDownloader.Config.DownloadAllPlatforms && !string.IsNullOrEmpty(os))
@@ -219,8 +220,16 @@ namespace DepotDownloader
                     return 1;
                 }
 
+                ContentDownloader.Config.DownloadAllArchs = HasParameter(args, "-all-archs");
+
                 var arch = GetParameter<string>(args, "-osarch");
 
+                if (ContentDownloader.Config.DownloadAllArchs && !string.IsNullOrEmpty(arch))
+                {
+                    Console.WriteLine("Error: Cannot specify -osarch when -all-archs is specified.");
+                    return 1;
+                }
+
                 ContentDownloader.Config.DownloadAllLanguages = HasParameter(args, "-all-languages");
                 var language = GetParameter<string>(args, "-language");
 
@@ -401,6 +410,7 @@ namespace DepotDownloader
             Console.WriteLine($"  -beta <branchname>       - download from specified branch if available (default: {ContentDownloader.DEFAULT_BRANCH}).");
             Console.WriteLine("  -betapassword <pass>     - branch password if applicable.");
             Console.WriteLine("  -all-platforms           - downloads all platform-specific depots when -app is used.");
+            Console.WriteLine("  -all-archs               - download all architecture-specific depots when -app is used.");
             Console.WriteLine("  -os <os>                 - the operating system for which to download the game (windows, macos or linux, default: OS the program is currently running on)");
             Console.WriteLine("  -osarch <arch>           - the architecture for which to download the game (32 or 64, default: the host's architecture)");
             Console.WriteLine("  -all-languages           - download all language-specific depots when -app is used.");
diff --git a/README.md b/README.md
index 67de48b..4a0740d 100644
--- a/README.md
+++ b/README.md
@@ -72,6 +72,7 @@ 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.