diff --git a/docs/technical/smapi.md b/docs/technical/smapi.md
index d115aefa..d1591143 100644
--- a/docs/technical/smapi.md
+++ b/docs/technical/smapi.md
@@ -32,6 +32,7 @@ argument | purpose
 `--install` | Preselects the install action, skipping the prompt asking what the user wants to do.
 `--uninstall` | Preselects the uninstall action, skipping the prompt asking what the user wants to do.
 `--game-path "path"` | Specifies the full path to the folder containing the Stardew Valley executable, skipping automatic detection and any prompt to choose a path. If the path is not valid, the installer displays an error.
+`--no-prompt` | Don't let the installer wait for user input (e.g. for cases where it's being run by a script). If the installer is unable to continue without user input, it'll fail instead.
 
 SMAPI itself recognises five arguments, but these are meant for internal use or testing, and might
 change without warning. **On Linux/macOS**, command-line arguments won't work; see _environment
diff --git a/src/SMAPI.Installer/InteractiveInstaller.cs b/src/SMAPI.Installer/InteractiveInstaller.cs
index 32a4e6e5..c21ccdf5 100644
--- a/src/SMAPI.Installer/InteractiveInstaller.cs
+++ b/src/SMAPI.Installer/InteractiveInstaller.cs
@@ -135,35 +135,24 @@ namespace StardewModdingApi.Installer
             Console.Title = $"SMAPI {context.GetInstallerVersion()} installer on {context.Platform} {context.PlatformName}";
             Console.WriteLine();
 
-            /****
-            ** Check if correct installer
-            ****/
-#if SMAPI_FOR_WINDOWS
-            if (context.IsUnix)
-            {
-                this.PrintError($"This is the installer for Windows. Run the 'install on {context.Platform}.{(context.Platform == Platform.Mac ? "command" : "sh")}' file instead.");
-                Console.ReadLine();
-                return;
-            }
-#else
-            if (context.IsWindows)
-            {
-                this.PrintError($"This is the installer for Linux/macOS. Run the 'install on Windows.exe' file instead.");
-                Console.ReadLine();
-                return;
-            }
-#endif
-
             /****
             ** read command-line arguments
             ****/
-            // get action from CLI
+            // get input mode
+            bool allowUserInput = !args.Contains("--no-prompt");
+
+            // get action
             bool installArg = args.Contains("--install");
             bool uninstallArg = args.Contains("--uninstall");
             if (installArg && uninstallArg)
             {
                 this.PrintError("You can't specify both --install and --uninstall command-line flags.");
-                Console.ReadLine();
+                this.AwaitConfirmation(allowUserInput);
+                return;
+            }
+            if (!allowUserInput && !installArg && !uninstallArg)
+            {
+                this.PrintError("You must specify --install or --uninstall when running with --no-prompt.");
                 return;
             }
 
@@ -175,12 +164,31 @@ namespace StardewModdingApi.Installer
                     gamePathArg = args[pathIndex];
             }
 
+            /****
+            ** Check if correct installer
+            ****/
+#if SMAPI_FOR_WINDOWS
+            if (context.IsUnix)
+            {
+                this.PrintError($"This is the installer for Windows. Run the 'install on {context.Platform}.{(context.Platform == Platform.Mac ? "command" : "sh")}' file instead.");
+                this.AwaitConfirmation(allowUserInput);
+                return;
+            }
+#else
+            if (context.IsWindows)
+            {
+                this.PrintError($"This is the installer for Linux/macOS. Run the 'install on Windows.exe' file instead.");
+                this.AwaitConfirmation();
+                return;
+            }
+#endif
+
 
             /*********
             ** Step 2: choose a theme (can't auto-detect on Linux/macOS)
             *********/
             MonitorColorScheme scheme = MonitorColorScheme.AutoDetect;
-            if (context.IsUnix)
+            if (context.IsUnix && allowUserInput)
             {
                 /****
                 ** print header
@@ -245,7 +253,7 @@ namespace StardewModdingApi.Installer
                 if (installDir == null)
                 {
                     this.PrintError("Failed finding your game path.");
-                    Console.ReadLine();
+                    this.AwaitConfirmation(allowUserInput);
                     return;
                 }
 
@@ -262,7 +270,7 @@ namespace StardewModdingApi.Installer
             if (!File.Exists(paths.GameDllPath))
             {
                 this.PrintError("The detected game install path doesn't contain a Stardew Valley executable.");
-                Console.ReadLine();
+                this.AwaitConfirmation(allowUserInput);
                 return;
             }
             Console.Clear();
@@ -340,7 +348,7 @@ namespace StardewModdingApi.Installer
                 if (context.IsUnix && File.Exists(paths.BackupLaunchScriptPath))
                 {
                     this.PrintDebug("Removing SMAPI launcher...");
-                    this.InteractivelyDelete(paths.VanillaLaunchScriptPath);
+                    this.InteractivelyDelete(paths.VanillaLaunchScriptPath, allowUserInput);
                     File.Move(paths.BackupLaunchScriptPath, paths.VanillaLaunchScriptPath);
                 }
 
@@ -352,7 +360,7 @@ namespace StardewModdingApi.Installer
                 {
                     this.PrintDebug(action == ScriptAction.Install ? "Removing previous SMAPI files..." : "Removing SMAPI files...");
                     foreach (string path in removePaths)
-                        this.InteractivelyDelete(path);
+                        this.InteractivelyDelete(path, allowUserInput);
                 }
 
                 // move global save data folder (changed in 3.2)
@@ -364,7 +372,7 @@ namespace StardewModdingApi.Installer
                     if (oldDir.Exists)
                     {
                         if (newDir.Exists)
-                            this.InteractivelyDelete(oldDir.FullName);
+                            this.InteractivelyDelete(oldDir.FullName, allowUserInput);
                         else
                             oldDir.MoveTo(newDir.FullName);
                     }
@@ -379,7 +387,7 @@ namespace StardewModdingApi.Installer
                     this.PrintDebug("Adding SMAPI files...");
                     foreach (FileSystemInfo sourceEntry in paths.BundleDir.EnumerateFileSystemInfos().Where(this.ShouldCopy))
                     {
-                        this.InteractivelyDelete(Path.Combine(paths.GameDir.FullName, sourceEntry.Name));
+                        this.InteractivelyDelete(Path.Combine(paths.GameDir.FullName, sourceEntry.Name), allowUserInput);
                         this.RecursiveCopy(sourceEntry, paths.GameDir);
                     }
 
@@ -394,7 +402,7 @@ namespace StardewModdingApi.Installer
                             if (!File.Exists(paths.BackupLaunchScriptPath))
                                 File.Move(paths.VanillaLaunchScriptPath, paths.BackupLaunchScriptPath);
                             else
-                                this.InteractivelyDelete(paths.VanillaLaunchScriptPath);
+                                this.InteractivelyDelete(paths.VanillaLaunchScriptPath, allowUserInput);
                         }
 
                         // add new launcher
@@ -464,7 +472,7 @@ namespace StardewModdingApi.Installer
 
                             // remove existing folder
                             if (targetFolder.Exists)
-                                this.InteractivelyDelete(targetFolder.FullName);
+                                this.InteractivelyDelete(targetFolder.FullName, allowUserInput);
 
                             // copy files
                             this.RecursiveCopy(sourceMod.Directory, paths.ModsDir, filter: this.ShouldCopy);
@@ -482,7 +490,7 @@ namespace StardewModdingApi.Installer
 
 #if SMAPI_DEPRECATED
                     // remove obsolete appdata mods
-                    this.InteractivelyRemoveAppDataMods(paths.ModsDir, bundledModsDir);
+                    this.InteractivelyRemoveAppDataMods(paths.ModsDir, bundledModsDir, allowUserInput);
 #endif
                 }
             }
@@ -513,7 +521,7 @@ namespace StardewModdingApi.Installer
                 );
             }
 
-            Console.ReadKey();
+            this.AwaitConfirmation(allowUserInput);
         }
 
 
@@ -581,7 +589,8 @@ namespace StardewModdingApi.Installer
 
         /// <summary>Interactively delete a file or folder path, and block until deletion completes.</summary>
         /// <param name="path">The file or folder path.</param>
-        private void InteractivelyDelete(string path)
+        /// <param name="allowUserInput">Whether the installer can ask for user input from the terminal.</param>
+        private void InteractivelyDelete(string path, bool allowUserInput)
         {
             while (true)
             {
@@ -594,7 +603,7 @@ namespace StardewModdingApi.Installer
                 {
                     this.PrintError($"Oops! The installer couldn't delete {path}: [{ex.GetType().Name}] {ex.Message}.");
                     this.PrintError("Try rebooting your computer and then run the installer again. If that doesn't work, try deleting it yourself then press any key to retry.");
-                    Console.ReadKey();
+                    this.AwaitConfirmation(allowUserInput);
                 }
             }
         }
@@ -814,7 +823,8 @@ namespace StardewModdingApi.Installer
         /// <summary>Interactively move mods out of the app data directory.</summary>
         /// <param name="properModsDir">The directory which should contain all mods.</param>
         /// <param name="packagedModsDir">The installer directory containing packaged mods.</param>
-        private void InteractivelyRemoveAppDataMods(DirectoryInfo properModsDir, DirectoryInfo packagedModsDir)
+        /// <param name="allowUserInput">Whether the installer can ask for user input from the terminal.</param>
+        private void InteractivelyRemoveAppDataMods(DirectoryInfo properModsDir, DirectoryInfo packagedModsDir, bool allowUserInput)
         {
             // get packaged mods to delete
             string[] packagedModNames = packagedModsDir.GetDirectories().Select(p => p.Name).ToArray();
@@ -841,7 +851,7 @@ namespace StardewModdingApi.Installer
                 if (isDir && packagedModNames.Contains(entry.Name, StringComparer.OrdinalIgnoreCase))
                 {
                     this.PrintDebug($"   Deleting {entry.Name} because it's bundled into SMAPI...");
-                    this.InteractivelyDelete(entry.FullName);
+                    this.InteractivelyDelete(entry.FullName, allowUserInput);
                     continue;
                 }
 
@@ -906,5 +916,13 @@ namespace StardewModdingApi.Installer
                 _ => true
             };
         }
+
+        /// <summary>Wait until the user presses enter to confirm, if user input is allowed.</summary>
+        /// <param name="allowUserInput">Whether the installer can ask for user input from the terminal.</param>
+        private void AwaitConfirmation(bool allowUserInput)
+        {
+            if (allowUserInput)
+                Console.ReadLine();
+        }
     }
 }