diff --git a/Machines/Commodore/Plus4/Plus4.cpp b/Machines/Commodore/Plus4/Plus4.cpp
new file mode 100644
index 000000000..852a99474
--- /dev/null
+++ b/Machines/Commodore/Plus4/Plus4.cpp
@@ -0,0 +1,20 @@
+//
+//  Plus4.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 06/12/2024.
+//  Copyright © 2024 Thomas Harte. All rights reserved.
+//
+
+#include "Plus4.hpp"
+
+using namespace Commodore::Plus4;
+
+std::unique_ptr<Machine> Machine::Plus4(
+	const Analyser::Static::Target *target,
+	const ROMMachine::ROMFetcher &rom_fetcher
+) {
+	(void)target;
+	(void)rom_fetcher;
+	return nullptr;
+}
diff --git a/Machines/Commodore/Plus4/Plus4.hpp b/Machines/Commodore/Plus4/Plus4.hpp
new file mode 100644
index 000000000..c2c6d4459
--- /dev/null
+++ b/Machines/Commodore/Plus4/Plus4.hpp
@@ -0,0 +1,25 @@
+//
+//  Plus4.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 06/12/2024.
+//  Copyright © 2024 Thomas Harte. All rights reserved.
+//
+
+#pragma once
+
+#include "../../../Analyser/Static/StaticAnalyser.hpp"
+#include "../../ROMMachine.hpp"
+
+#include <memory>
+
+namespace Commodore::Plus4 {
+
+class Machine {
+public:
+	virtual ~Machine() = default;
+
+	static std::unique_ptr<Machine> Plus4(const Analyser::Static::Target *, const ROMMachine::ROMFetcher &);
+};
+
+}
diff --git a/OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj b/OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj
index 2eb27a5c2..cd3ed33d3 100644
--- a/OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj	
+++ b/OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj	
@@ -385,6 +385,8 @@
 		4B59199C1DAC6C46005BB85C /* OricTAP.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B59199A1DAC6C46005BB85C /* OricTAP.cpp */; };
 		4B595FAD2086DFBA0083CAA8 /* AudioToggle.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B595FAC2086DFBA0083CAA8 /* AudioToggle.cpp */; };
 		4B595FAE2086DFBA0083CAA8 /* AudioToggle.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B595FAC2086DFBA0083CAA8 /* AudioToggle.cpp */; };
+		4B596EB22D037E8800FBF4B1 /* Plus4.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B596EB02D037E8800FBF4B1 /* Plus4.cpp */; };
+		4B596EB32D037E8800FBF4B1 /* Plus4.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B596EB02D037E8800FBF4B1 /* Plus4.cpp */; };
 		4B5B37312777C7FC0047F238 /* IPF.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B5B372F2777C7FC0047F238 /* IPF.cpp */; };
 		4B5B37322777C7FC0047F238 /* IPF.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B5B372F2777C7FC0047F238 /* IPF.cpp */; };
 		4B5D497C28513F870076E2F9 /* IPF.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4B5B372F2777C7FC0047F238 /* IPF.cpp */; };
@@ -1599,6 +1601,8 @@
 		4B59199B1DAC6C46005BB85C /* OricTAP.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = OricTAP.hpp; sourceTree = "<group>"; };
 		4B595FAB2086DFBA0083CAA8 /* AudioToggle.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = AudioToggle.hpp; sourceTree = "<group>"; };
 		4B595FAC2086DFBA0083CAA8 /* AudioToggle.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = AudioToggle.cpp; sourceTree = "<group>"; };
+		4B596EAF2D037E8800FBF4B1 /* Plus4.hpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.h; path = Plus4.hpp; sourceTree = "<group>"; };
+		4B596EB02D037E8800FBF4B1 /* Plus4.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; path = Plus4.cpp; sourceTree = "<group>"; };
 		4B5B372F2777C7FC0047F238 /* IPF.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; path = IPF.cpp; sourceTree = "<group>"; };
 		4B5B37302777C7FC0047F238 /* IPF.hpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.h; path = IPF.hpp; sourceTree = "<group>"; };
 		4B5D5C9525F56FC7001B4623 /* Spectrum.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = Spectrum.cpp; path = Parsers/Spectrum.cpp; sourceTree = "<group>"; };
@@ -3269,10 +3273,11 @@
 		4B4DC81D1D2C2425003C5BF8 /* Commodore */ = {
 			isa = PBXGroup;
 			children = (
-				4B4DC8251D2C2470003C5BF8 /* 1540 */,
-				4B4DC81E1D2C2425003C5BF8 /* Vic-20 */,
 				4B4DC8291D2C27A4003C5BF8 /* SerialBus.cpp */,
 				4B4DC82A1D2C27A4003C5BF8 /* SerialBus.hpp */,
+				4B4DC8251D2C2470003C5BF8 /* 1540 */,
+				4B596EB12D037E8800FBF4B1 /* Plus4 */,
+				4B4DC81E1D2C2425003C5BF8 /* Vic-20 */,
 			);
 			path = Commodore;
 			sourceTree = "<group>";
@@ -3382,6 +3387,15 @@
 			path = AudioToggle;
 			sourceTree = "<group>";
 		};
+		4B596EB12D037E8800FBF4B1 /* Plus4 */ = {
+			isa = PBXGroup;
+			children = (
+				4B596EAF2D037E8800FBF4B1 /* Plus4.hpp */,
+				4B596EB02D037E8800FBF4B1 /* Plus4.cpp */,
+			);
+			path = Plus4;
+			sourceTree = "<group>";
+		};
 		4B643F3B1D77AD6D00D431D6 /* StaticAnalyser */ = {
 			isa = PBXGroup;
 			children = (
@@ -6137,6 +6151,7 @@
 				4B8318B822D3E566006DB630 /* IWM.cpp in Sources */,
 				4B0333B02094081A0050B93D /* AppleDSK.cpp in Sources */,
 				4B055AD41FAE9B0B0060FFFF /* Oric.cpp in Sources */,
+				4B596EB22D037E8800FBF4B1 /* Plus4.cpp in Sources */,
 				4B055A921FAE85B50060FFFF /* PRG.cpp in Sources */,
 				4B055AAF1FAE85FD0060FFFF /* UnformattedTrack.cpp in Sources */,
 				4B055A7E1FAE84AA0060FFFF /* main.cpp in Sources */,
@@ -6243,6 +6258,7 @@
 				4B051C97266EF5F600CA44E8 /* CSAppleII.mm in Sources */,
 				4B0ACC2A23775819008902D0 /* Video.cpp in Sources */,
 				4B54C0BF1F8D8F450050900F /* Keyboard.cpp in Sources */,
+				4B596EB32D037E8800FBF4B1 /* Plus4.cpp in Sources */,
 				4B3FE75E1F3CF68B00448EE4 /* CPM.cpp in Sources */,
 				423820112B17CBC800964EFE /* StaticAnalyser.cpp in Sources */,
 				4BC6236D26F4235400F83DFE /* Copper.cpp in Sources */,