diff --git a/tools/build_patch.gd b/tools/build_patch.gd
new file mode 100644
index 0000000..5dc813f
--- /dev/null
+++ b/tools/build_patch.gd
@@ -0,0 +1,53 @@
+#!/usr/bin/env -S godot --headless -s
+extends MainLoop
+
+func _initialize():
+	print("--- Starting Automated Patch Build ---")
+	
+	var output_file = "patch.pck"
+	var changed_files_txt = "changed_files.txt"
+	
+	if not FileAccess.file_exists(changed_files_txt):
+		print("ERROR: missing changed_files.txt. Cannot build patch.")
+		return
+
+	var pck_packer = PCKPacker.new()
+	var err = pck_packer.pck_start(output_file)
+	if err != OK:
+		print("ERROR: Could not start PCK file: ", output_file)
+		return
+
+	var file = FileAccess.open(changed_files_txt, FileAccess.READ)
+	var count = 0
+	
+	while not file.eof_reached():
+		var line = file.get_line().strip_edges()
+		if line.is_empty(): continue
+			
+		var res_path = "res://" + line
+		# Include automatically compiled scripts for GDScript
+		if line.ends_with(".gd"):
+			var remap_path = res_path.replace(".gd", ".gdc")
+			if FileAccess.file_exists(remap_path):
+				pck_packer.add_file(res_path, remap_path)
+			else:
+				pck_packer.add_file(res_path, res_path)
+			count += 1
+			print("Adding (Script): ", res_path)
+		elif FileAccess.file_exists(res_path):
+			print("Adding to patch: ", res_path)
+			pck_packer.add_file(res_path, res_path)
+			count += 1
+		else:
+			print("Warning: Changed file not found or Is Directory, skipping: ", res_path)
+
+	# Always package our version/changelog list so clients see the new changelog
+	var version_manifest = "res://assets/data/version.json"
+	pck_packer.add_file(version_manifest, version_manifest)
+	print("Adding Version Manifest: ", version_manifest)
+
+	pck_packer.flush(true)
+	print("--- Patch Build Complete! Packed %d files into %s ---" % [count + 1, output_file])
+	
+func _process(_delta: float) -> bool:
+	return true # True tells Godot to gracefully shut down the engine now!