diff --git a/tools/cxbe/Main.cpp b/tools/cxbe/Main.cpp
index c75bdbfa3..96afbcbdd 100644
--- a/tools/cxbe/Main.cpp
+++ b/tools/cxbe/Main.cpp
@@ -20,24 +20,31 @@ int main(int argc, char *argv[])
     char szDumpFilename[OPTION_LEN + 1] = { 0 };
     char szXbeTitle[OPTION_LEN + 1] = "Untitled";
     char szXbeTitleID[OPTION_LEN + 1] = "";
+    char szXbeRegions[OPTION_LEN + 1] = "";
     char szMode[OPTION_LEN + 1] = "retail";
     char szLogo[OPTION_LEN + 1] = "";
     char szDebugPath[OPTION_LEN + 1] = "";
 
     bool bRetail;
     uint32 dwTitleId = 0x4358270F; // CX-9999
+    uint32 dwRegions;
 
     const char *program = argv[0];
     const char *program_desc = "CXBE EXE to XBE (win32 to Xbox) Relinker (Version: " VERSION ")";
-    Option options[] = { { szExeFilename, NULL, "exefile" },
-                         { szXbeFilename, "OUT", "filename" },
-                         { szDumpFilename, "DUMPINFO", "filename" },
-                         { szXbeTitle, "TITLE", "title" },
-                         { szXbeTitleID, "TITLEID", "{%c%c-%u|%x}" },
-                         { szMode, "MODE", "{debug|retail}" },
-                         { szLogo, "LOGO", "filename" },
-                         { szDebugPath, "DEBUGPATH", "path" },
-                         { NULL } };
+    Option options[] = {
+        { szExeFilename, NULL, "exefile" },
+        { szXbeFilename, "OUT", "filename" },
+        { szDumpFilename, "DUMPINFO", "filename" },
+        { szXbeTitle, "TITLE", "title" },
+        { szXbeTitleID, "TITLEID", "{%c%c-%u|%x}" },
+        { szXbeRegions, "REGION",
+          "{-|[n][j][w][m]|a}\n"
+          "    -=none, n=North America, j=Japan, w=world, m=manufacturing, a=njwm" },
+        { szMode, "MODE", "{debug|retail}" },
+        { szLogo, "LOGO", "filename" },
+        { szDebugPath, "DEBUGPATH", "path" },
+        { NULL }
+    };
 
     if(ParseOptions(argv, argc, options, szErrorMessage))
     {
@@ -90,6 +97,47 @@ int main(int argc, char *argv[])
         }
     }
 
+    // interpret region flags
+    if(szXbeRegions[0])
+    {
+        char c;
+        for(int i = 0; (c = szXbeRegions[i]); ++i)
+        {
+            switch(c)
+            {
+                case '-':;
+                    dwRegions = 0;
+                    goto breakfor;
+                case 'a':;
+                    dwRegions = XBEIMAGE_GAME_REGION_NA | XBEIMAGE_GAME_REGION_JAPAN |
+                                XBEIMAGE_GAME_REGION_RESTOFWORLD |
+                                XBEIMAGE_GAME_REGION_MANUFACTURING;
+                    goto breakfor;
+                case 'n':;
+                    dwRegions |= XBEIMAGE_GAME_REGION_NA;
+                    break;
+                case 'j':;
+                    dwRegions |= XBEIMAGE_GAME_REGION_JAPAN;
+                    break;
+                case 'w':;
+                    dwRegions |= XBEIMAGE_GAME_REGION_RESTOFWORLD;
+                    break;
+                case 'm':;
+                    dwRegions |= XBEIMAGE_GAME_REGION_MANUFACTURING;
+                    break;
+                default:;
+                    printf("WARNING: Invalid region char: %c\n", c);
+                    break;
+            }
+        }
+    breakfor:;
+    }
+    else
+    {
+        dwRegions = XBEIMAGE_GAME_REGION_NA | XBEIMAGE_GAME_REGION_JAPAN |
+                    XBEIMAGE_GAME_REGION_RESTOFWORLD | XBEIMAGE_GAME_REGION_MANUFACTURING;
+    }
+
     // verify we received the required parameters
     if(szExeFilename[0] == '\0')
     {
@@ -126,7 +174,7 @@ int main(int argc, char *argv[])
             LogoPtr = &logo;
         }
 
-        Xbe *XbeFile = new Xbe(ExeFile, szXbeTitle, dwTitleId, bRetail, LogoPtr, szDebugPath);
+        Xbe *XbeFile = new Xbe(ExeFile, szXbeTitle, dwTitleId, dwRegions, bRetail, LogoPtr, szDebugPath);
 
         if(XbeFile->GetError() != 0)
         {
diff --git a/tools/cxbe/Xbe.cpp b/tools/cxbe/Xbe.cpp
index 8fba92912..27fc86122 100644
--- a/tools/cxbe/Xbe.cpp
+++ b/tools/cxbe/Xbe.cpp
@@ -32,8 +32,8 @@ static size_t BasenameOffset(const std::string &path)
 }
 
 // construct via Exe file object
-Xbe::Xbe(class Exe *x_Exe, const char *x_szTitle, uint32 x_dwTitleID, bool x_bRetail,
-         const std::vector<uint08> *logo, const char *x_szDebugPath)
+Xbe::Xbe(class Exe *x_Exe, const char *x_szTitle, uint32 x_dwTitleID, uint32 x_dwRegions,
+         bool x_bRetail, const std::vector<uint08> *logo, const char *x_szDebugPath)
 {
     ConstructorInit();
 
@@ -304,10 +304,7 @@ Xbe::Xbe(class Exe *x_Exe, const char *x_szTitle, uint32 x_dwTitleID, bool x_bRe
                 XBEIMAGE_MEDIA_TYPE_MEDIA_BOARD | XBEIMAGE_MEDIA_TYPE_NONSECURE_HARD_DISK |
                 XBEIMAGE_MEDIA_TYPE_NONSECURE_MODE;
 
-            // TODO: allow configuration
-            m_Certificate.dwGameRegion = XBEIMAGE_GAME_REGION_MANUFACTURING |
-                                         XBEIMAGE_GAME_REGION_NA | XBEIMAGE_GAME_REGION_JAPAN |
-                                         XBEIMAGE_GAME_REGION_RESTOFWORLD;
+            m_Certificate.dwGameRegion = x_dwRegions;
 
             // TODO: allow configuration
             m_Certificate.dwGameRatings = 0xFFFFFFFF;
diff --git a/tools/cxbe/Xbe.h b/tools/cxbe/Xbe.h
index be8382c2d..e9915fbb7 100644
--- a/tools/cxbe/Xbe.h
+++ b/tools/cxbe/Xbe.h
@@ -26,8 +26,8 @@ class Xbe : public Error
 {
   public:
     // construct via Exe file object
-    Xbe(class Exe *x_Exe, const char *x_szTitle, uint32 x_dwTitleID, bool x_bRetail,
-        const std::vector<uint08> *logo = nullptr, const char *x_szDebugPath = nullptr);
+    Xbe(class Exe *x_Exe, const char *x_szTitle, uint32 x_dwTitleID, uint32 x_dwRegions,
+        bool x_bRetail, const std::vector<uint08> *logo = nullptr, const char *x_szDebugPath = nullptr);
 
     // deconstructor
     ~Xbe();