diff --git a/Sources/Plasma/Apps/plUruLauncher/plClientLauncher.cpp b/Sources/Plasma/Apps/plUruLauncher/plClientLauncher.cpp
index 5eb775f5..fd3771ec 100644
--- a/Sources/Plasma/Apps/plUruLauncher/plClientLauncher.cpp
+++ b/Sources/Plasma/Apps/plUruLauncher/plClientLauncher.cpp
@@ -161,6 +161,11 @@ plClientLauncher::~plClientLauncher() { }
 
 plString plClientLauncher::GetAppArgs() const
 {
+    // If -Repair was specified, there are no args for the next call...
+    if (hsCheckBits(fFlags, kRepairGame)) {
+        return "";
+    }
+
     plStringStream ss;
     ss << "-ServerIni=";
     ss << fServerIni.AsString();
@@ -190,16 +195,33 @@ void plClientLauncher::IOnPatchComplete(ENetError result, const plString& msg)
         s_errorProc(result, msg);
 }
 
+bool plClientLauncher::IApproveDownload(const plFileName& file)
+{
+    // So, for a repair, what we want to do is quite simple.
+    // That is: download everything that is NOT in the root directory.
+    plFileName path = file.StripFileName();
+    return !path.AsString().IsEmpty();
+}
+
 void plClientLauncher::PatchClient()
 {
-    if (fStatusFunc)
-        fStatusFunc("Checking for updates...");
+    if (fStatusFunc) {
+        if (hsCheckBits(fFlags, kGameDataOnly))
+            fStatusFunc("Verifying game data...");
+        else
+            fStatusFunc("Checking for updates...");
+    }
     hsAssert(fPatcherFactory, "why is the patcher factory nil?");
 
     pfPatcher* patcher = fPatcherFactory();
     patcher->OnCompletion(std::bind(&plClientLauncher::IOnPatchComplete, this, std::placeholders::_1, std::placeholders::_2));
     patcher->OnSelfPatch([&](const plFileName& file) { fClientExecutable = file; });
 
+    // If this is a repair, we need to approve the downloads...
+    if (hsCheckBits(fFlags, kGameDataOnly))
+        patcher->OnFileDownloadDesired(std::bind(&plClientLauncher::IApproveDownload, this, std::placeholders::_1));
+
+    // Let's get 'er done.
     if (hsCheckBits(fFlags, kHaveSelfPatched)) {
         if (hsCheckBits(fFlags, kClientImage))
             patcher->RequestManifest(plManifest::ClientImageManifest());
@@ -336,11 +358,12 @@ void plClientLauncher::ParseArguments()
     if (cmdParser.GetBool(arg)) \
         fFlags |= flag;
 
-    enum { kArgServerIni, kArgNoSelfPatch, kArgImage };
+    enum { kArgServerIni, kArgNoSelfPatch, kArgImage, kArgRepairGame };
     const CmdArgDef cmdLineArgs[] = {
         { kCmdArgFlagged | kCmdTypeString, L"ServerIni", kArgServerIni },
         { kCmdArgFlagged | kCmdTypeBool, L"NoSelfPatch", kArgNoSelfPatch },
         { kCmdArgFlagged | kCmdTypeBool, L"Image", kArgImage },
+        { kCmdArgFlagged | kCmdTypeBool, L"Repair", kArgRepairGame },
     };
 
     CCmdParser cmdParser(cmdLineArgs, arrsize(cmdLineArgs));
@@ -351,6 +374,11 @@ void plClientLauncher::ParseArguments()
         fServerIni = plString::FromWchar(cmdParser.GetString(kArgServerIni));
     APPLY_FLAG(kArgNoSelfPatch, kHaveSelfPatched);
     APPLY_FLAG(kArgImage, kClientImage);
+    APPLY_FLAG(kArgRepairGame, kRepairGame);
+
+    // last chance setup
+    if (hsCheckBits(fFlags, kRepairGame))
+        fClientExecutable = plManifest::PatcherExecutable();
 
 #undef APPLY_FLAG
 }
diff --git a/Sources/Plasma/Apps/plUruLauncher/plClientLauncher.h b/Sources/Plasma/Apps/plUruLauncher/plClientLauncher.h
index ab97000d..464d3082 100644
--- a/Sources/Plasma/Apps/plUruLauncher/plClientLauncher.h
+++ b/Sources/Plasma/Apps/plUruLauncher/plClientLauncher.h
@@ -62,6 +62,9 @@ private:
     {
         kHaveSelfPatched = 1<<0,
         kClientImage = 1<<1,
+        kGameDataOnly = (1<<2),
+
+        kRepairGame = kHaveSelfPatched | kClientImage | kGameDataOnly,
     };
 
     uint32_t   fFlags;
@@ -77,6 +80,7 @@ private:
     plString GetAppArgs() const;
 
     void IOnPatchComplete(ENetError result, const plString& msg);
+    bool IApproveDownload(const plFileName& file);
 
 public:
     plClientLauncher();
diff --git a/Sources/Plasma/FeatureLib/pfPatcher/pfPatcher.cpp b/Sources/Plasma/FeatureLib/pfPatcher/pfPatcher.cpp
index 07dff2f5..75b9615e 100644
--- a/Sources/Plasma/FeatureLib/pfPatcher/pfPatcher.cpp
+++ b/Sources/Plasma/FeatureLib/pfPatcher/pfPatcher.cpp
@@ -104,6 +104,7 @@ struct pfPatcherWorker : public hsThread
 
     pfPatcher::CompletionFunc fOnComplete;
     pfPatcher::FileDownloadFunc fFileBeginDownload;
+    pfPatcher::FileDesiredFunc fFileDownloadDesired;
     pfPatcher::FileDownloadFunc fFileDownloaded;
     pfPatcher::GameCodeDiscoverFunc fGameCodeDiscovered;
     pfPatcher::ProgressTickFunc fProgressTick;
@@ -482,7 +483,16 @@ void pfPatcherWorker::ProcessFile()
             }
         }
 
-        // If you got here, they're different.
+        // It's different... but do we want it?
+        if (fFileDownloadDesired) {
+            if (!fFileDownloadDesired(clName)) {
+                PatcherLogRed("\tDeclined '%S'", entry.clientName);
+                fQueuedFiles.pop_front();
+                continue;
+            }
+        }
+
+        // If you got here, they're different and we want it.
         PatcherLogYellow("\tEnqueuing '%S'", entry.clientName);
         plFileSystem::CreateDir(plFileName(clName).StripFileName());
 
@@ -564,6 +574,11 @@ void pfPatcher::OnFileDownloadBegin(FileDownloadFunc cb)
     fWorker->fFileBeginDownload = cb;
 }
 
+void pfPatcher::OnFileDownloadDesired(FileDesiredFunc cb)
+{
+    fWorker->fFileDownloadDesired = cb;
+}
+
 void pfPatcher::OnFileDownloaded(FileDownloadFunc cb)
 {
     fWorker->fFileDownloaded = cb;
diff --git a/Sources/Plasma/FeatureLib/pfPatcher/pfPatcher.h b/Sources/Plasma/FeatureLib/pfPatcher/pfPatcher.h
index dee1b77b..3147cf6e 100644
--- a/Sources/Plasma/FeatureLib/pfPatcher/pfPatcher.h
+++ b/Sources/Plasma/FeatureLib/pfPatcher/pfPatcher.h
@@ -70,6 +70,9 @@ public:
     /** Represents a function that takes the status and an optional message on completion. */
     typedef std::function<void(ENetError, const plString&)> CompletionFunc;
 
+    /** Represents a function that takes (const plFileName&) and approves it. */
+    typedef std::function<bool(const plFileName&)> FileDesiredFunc;
+
     /** Represents a function that takes (const plFileName&) on an interesting file operation. */
     typedef std::function<void(const plFileName&)> FileDownloadFunc;
 
@@ -95,6 +98,12 @@ public:
      */
     void OnFileDownloadBegin(FileDownloadFunc cb);
 
+    /** Set a callback that will be fired when the patcher wants to download a file. You are
+     *  given the ability to approve or veto the download. With great power comes great responsibility...
+     *  \remarks This will be called from the patcher thread.
+     */
+    void OnFileDownloadDesired(FileDesiredFunc cb);
+
     /** Set a callback that will be fired when the patcher has finished downloading a file from the server.
      *  \remarks This will be called from the network thread.
      */