Compiling Your UE5 Game For Apple Silicon (M1)

Generating A Visual Studio Code Project For UE

• Run UnrealBuilTool located here UnrealEngine/Engine/Binaries/DotNET/UnrealBuildTool to generate Visual Studio Code project files for the Engine

./{UEInstallDir}/Engine/Binaries/DotNET/UnrealBuildTool/UnrealBuildTool -VSCode

• To generate Visual Studio Code project files for your game run

./{UEInstallDir}/Engine/Binaries/DotNET/UnrealBuildTool/UnrealBuildTool -VSCode {AbsolutePath}/{ToYourGame}/{YourGameName}.uproject -game

Modifying Your Generated Project Files To Compile For Apple Silicon

• Open the generated UE5 Visual Studio Code project located at {UEInstallDir}/UE5.code-workspace
• Open tasks.json and locate the "label": "UnrealGame Mac Development Build" section and modify it by adding "-architecture=arm64" like so

{
			"label": "UnrealGame Mac Development Build",
			"group": "build",
			"command": "Engine/Build/BatchFiles/Mac/Build.sh",
			"args": [
				"UnrealGame",
				"Mac",
				"Development",
				"-waitmutex",
				"-architecture=arm64" <----Add This Line
			],
			"problemMatcher": "$msCompile",
			"dependsOn": [
				"UnrealBuildTool Mac Development Build"
			],
			"type": "shell",
			"options": {
				"cwd": "{UEInstallDir}"
			}
		},

• You can do this for any of the UnrealGame sections such as for DebugGame, Shipping etc
• Now do the exact same thing for your Game project
• Open the generated UE5 Visual Studio Code project located at {YourGamePath}/{YourGameName}.code-workspace
• Open tasks.json and locate the "label": "{YourGameName} Mac Development Build" section and modify it by adding "-architecture=arm64" like so

{
	"label": "{YourGameName} Mac Development Build",
	"group": "build",
	"command": "Engine/Build/BatchFiles/Mac/Build.sh",
	"args": [
		"{YourGameName}",
		"Mac",
		"Development",
		"{PathTo}/{YourGame}/{YourGameName}.uproject",
		"-waitmutex",
		"-architecture=arm64" <----Add This Line
	],
	"problemMatcher": "$msCompile",
	"type": "shell",
	"options": {
		"cwd": "{UEInstallDir}"
	}
},

• You can do this for any of the {YourGameName} sections such as for DebugGame, Shipping etc {{danger}}

Make sure to not modify the {YourGameName}Editor sections as the Editor does not support Apple Silicon (M1)

{{/danger}}

Compiling Your Game For Apple Silicon (M1)

• Press CMD+Shift+B to bring up the build menu
• In your UE5 project search for UnrealGame Mac Development Build and run it
• In your Game project search for {YourGameName} Mac Development Build and run it.

Packaging Your Game

• The last step is to cook and package your game
• This can be done by using UnrealAutomationTool located here {UEInstallDir}/Engine/Build/BatchFiles/RunUAT.sh
• Simply run these commands

1. cd {UEInstallDir}
2. Engine/Build/BatchFiles/RunUAT.sh BuildCookRun -project={AbsolutePath}/{ToYourGame}/{YourGameName}.uproject -cook -stage -package -noP4 -clientconfig=Development -serverconfig=Development -specifiedarchitecture=arm64 -architecture=arm64

• Your packaged game can now be found and run here {AbsolutePath}/{ToYourGame}/Saved/StagedBuilds/Mac/{YourGameName}.app

Complete!