diff --git a/Dotnet/AppApi/Common/AppApiCommon.cs b/Dotnet/AppApi/Common/AppApiCommon.cs
index 305bb9e2..14d9c4ab 100644
--- a/Dotnet/AppApi/Common/AppApiCommon.cs
+++ b/Dotnet/AppApi/Common/AppApiCommon.cs
@@ -149,10 +149,11 @@ namespace VRCX
             return output;
         }
 
-        public void SetAppLauncherSettings(bool enabled, bool killOnExit)
+        public void SetAppLauncherSettings(bool enabled, bool killOnExit, bool runProcessOnce)
         {
             AutoAppLaunchManager.Instance.Enabled = enabled;
             AutoAppLaunchManager.Instance.KillChildrenOnExit = killOnExit;
+            AutoAppLaunchManager.Instance.RunProcessOnce = runProcessOnce;
         }
 
         public string GetFileBase64(string path)
diff --git a/Dotnet/AutoAppLaunchManager.cs b/Dotnet/AutoAppLaunchManager.cs
index 595c9354..cf5054e1 100644
--- a/Dotnet/AutoAppLaunchManager.cs
+++ b/Dotnet/AutoAppLaunchManager.cs
@@ -21,6 +21,7 @@ namespace VRCX
         public bool Enabled = false;
         /// <summary> Whether or not to kill child processes when VRChat closes. </summary>
         public bool KillChildrenOnExit = true;
+        public bool RunProcessOnce = true;
         public readonly string AppShortcutDirectory;
 
         private DateTime startTime = DateTime.Now;
@@ -110,11 +111,15 @@ namespace VRCX
                     UpdateChildProcesses();
 
                 var shortcutFiles = FindShortcutFiles(AppShortcutDirectory);
-
                 foreach (var file in shortcutFiles)
                 {
-                    if (!IsChildProcessRunning(file))
-                        StartChildProcess(file);
+                    if (RunProcessOnce && IsProcessRunning(file))
+                        continue;
+                    
+                    if (IsChildProcessRunning(file))
+                        continue;
+                    
+                    StartChildProcess(file);
                 }
 
                 if (shortcutFiles.Length == 0)
@@ -273,6 +278,20 @@ namespace VRCX
         {
             return startedProcesses.ContainsKey(path);
         }
+        
+        private bool IsProcessRunning(string filePath)
+        {
+            try
+            {
+                var processName = Path.GetFileNameWithoutExtension(filePath);
+                return Process.GetProcessesByName(processName).Length != 0;
+            }
+            catch (Exception ex)
+            {
+                logger.Error(ex, "Error checking if process is running: {0}", filePath);
+                return false;
+            }
+        }
 
         public void Init()
         {
diff --git a/src/localization/en/en.json b/src/localization/en/en.json
index 40613289..15d454a4 100644
--- a/src/localization/en/en.json
+++ b/src/localization/en/en.json
@@ -631,7 +631,8 @@
                         "folder": "Auto-Launch Folder",
                         "folder_tooltip": "To auto-launch apps with VRChat, place shortcuts in this folder.",
                         "enable": "Enable",
-                        "auto_close": "Auto close apps"
+                        "auto_close": "Auto close apps",
+                        "run_process_once": "Open single instance of app"
                     },
                     "cache_debug": {
                         "header": "VRCX Instance Cache/Debug",
diff --git a/src/stores/settings/advanced.js b/src/stores/settings/advanced.js
index 1a9d4523..82b5a166 100644
--- a/src/stores/settings/advanced.js
+++ b/src/stores/settings/advanced.js
@@ -25,6 +25,7 @@ export const useAdvancedSettingsStore = defineStore('AdvancedSettings', () => {
         avatarRemoteDatabase: true,
         enableAppLauncher: true,
         enableAppLauncherAutoClose: true,
+        enableAppLauncherRunProcessOnce: true,
         screenshotHelper: true,
         screenshotHelperModifyFilename: false,
         screenshotHelperCopyToClipboard: false,
@@ -58,6 +59,7 @@ export const useAdvancedSettingsStore = defineStore('AdvancedSettings', () => {
             avatarRemoteDatabase,
             enableAppLauncher,
             enableAppLauncherAutoClose,
+            enableAppLauncherRunProcessOnce,
             screenshotHelper,
             screenshotHelperModifyFilename,
             screenshotHelperCopyToClipboard,
@@ -84,6 +86,10 @@ export const useAdvancedSettingsStore = defineStore('AdvancedSettings', () => {
             configRepository.getBool('VRCX_avatarRemoteDatabase', true),
             configRepository.getBool('VRCX_enableAppLauncher', true),
             configRepository.getBool('VRCX_enableAppLauncherAutoClose', true),
+            configRepository.getBool(
+                'VRCX_enableAppLauncherRunProcessOnce',
+                true
+            ),
             configRepository.getBool('VRCX_screenshotHelper', true),
             configRepository.getBool(
                 'VRCX_screenshotHelperModifyFilename',
@@ -120,6 +126,7 @@ export const useAdvancedSettingsStore = defineStore('AdvancedSettings', () => {
         state.avatarRemoteDatabase = avatarRemoteDatabase;
         state.enableAppLauncher = enableAppLauncher;
         state.enableAppLauncherAutoClose = enableAppLauncherAutoClose;
+        state.enableAppLauncherRunProcessOnce = enableAppLauncherRunProcessOnce;
         state.screenshotHelper = screenshotHelper;
         state.screenshotHelperModifyFilename = screenshotHelperModifyFilename;
         state.screenshotHelperCopyToClipboard = screenshotHelperCopyToClipboard;
@@ -167,6 +174,9 @@ export const useAdvancedSettingsStore = defineStore('AdvancedSettings', () => {
     const enableAppLauncherAutoClose = computed(
         () => state.enableAppLauncherAutoClose
     );
+    const enableAppLauncherRunProcessOnce = computed(
+        () => state.enableAppLauncherRunProcessOnce
+    );
     const screenshotHelper = computed(() => state.screenshotHelper);
     ``;
     const screenshotHelperModifyFilename = computed(
@@ -280,6 +290,15 @@ export const useAdvancedSettingsStore = defineStore('AdvancedSettings', () => {
         );
         handleSetAppLauncherSettings();
     }
+    async function setEnableAppLauncherRunProcessOnce() {
+        state.enableAppLauncherRunProcessOnce =
+            !state.enableAppLauncherRunProcessOnce;
+        await configRepository.setBool(
+            'VRCX_enableAppLauncherRunProcessOnce',
+            state.enableAppLauncherRunProcessOnce
+        );
+        handleSetAppLauncherSettings();
+    }
     async function setScreenshotHelper() {
         state.screenshotHelper = !state.screenshotHelper;
         await configRepository.setBool(
@@ -440,7 +459,8 @@ export const useAdvancedSettingsStore = defineStore('AdvancedSettings', () => {
     function handleSetAppLauncherSettings() {
         AppApi.SetAppLauncherSettings(
             state.enableAppLauncher,
-            state.enableAppLauncherAutoClose
+            state.enableAppLauncherAutoClose,
+            state.enableAppLauncherRunProcessOnce
         );
     }
 
@@ -678,6 +698,7 @@ export const useAdvancedSettingsStore = defineStore('AdvancedSettings', () => {
         avatarRemoteDatabase,
         enableAppLauncher,
         enableAppLauncherAutoClose,
+        enableAppLauncherRunProcessOnce,
         screenshotHelper,
         screenshotHelperModifyFilename,
         screenshotHelperCopyToClipboard,
@@ -707,6 +728,7 @@ export const useAdvancedSettingsStore = defineStore('AdvancedSettings', () => {
         setAvatarRemoteDatabase,
         setEnableAppLauncher,
         setEnableAppLauncherAutoClose,
+        setEnableAppLauncherRunProcessOnce,
         setScreenshotHelper,
         setScreenshotHelperModifyFilename,
         setScreenshotHelperCopyToClipboard,
diff --git a/src/types/globals.d.ts b/src/types/globals.d.ts
index 0b3245c7..f9ff0442 100644
--- a/src/types/globals.d.ts
+++ b/src/types/globals.d.ts
@@ -197,7 +197,8 @@ declare global {
         GetColourBulk(userIds: string[]): Promise<Record<string, number>>;
         SetAppLauncherSettings(
             enabled: boolean,
-            killOnExit: boolean
+            killOnExit: boolean,
+            runProcessOnce: boolean
         ): Promise<void>;
         GetFileBase64(path: string): Promise<string | null>;
 
diff --git a/src/views/Settings/Settings.vue b/src/views/Settings/Settings.vue
index 1b84af90..6436af51 100644
--- a/src/views/Settings/Settings.vue
+++ b/src/views/Settings/Settings.vue
@@ -1521,6 +1521,11 @@
                             :value="enableAppLauncherAutoClose"
                             :long-label="true"
                             @change="setEnableAppLauncherAutoClose" />
+                        <simple-switch
+                            :label="t('view.settings.advanced.advanced.app_launcher.run_process_once')"
+                            :value="enableAppLauncherRunProcessOnce"
+                            :long-label="true"
+                            @change="setEnableAppLauncherRunProcessOnce" />
                     </div>
                 </template>
 
@@ -2118,6 +2123,7 @@
         avatarRemoteDatabase,
         enableAppLauncher,
         enableAppLauncherAutoClose,
+        enableAppLauncherRunProcessOnce,
         screenshotHelper,
         screenshotHelperModifyFilename,
         screenshotHelperCopyToClipboard,
@@ -2143,6 +2149,7 @@
         setAvatarRemoteDatabase,
         setEnableAppLauncher,
         setEnableAppLauncherAutoClose,
+        setEnableAppLauncherRunProcessOnce,
         setScreenshotHelper,
         setScreenshotHelperModifyFilename,
         setScreenshotHelperCopyToClipboard,