GameMaker Studio 2 Indie subscription and above come with the three PC export platforms: Windows, Mac and Ubuntu. In this article we give the required steps to get the macOS platform up and running. However, please ensure that your Mac meets GMS2's system requirements before continuing with this guide.
Please be aware that GMS2 expects a case-insensitive system (which is the default when installing macOS), and whilst we aim to remove this restriction from our tools for v2.3.0, we cannot control what the external build tools SDKs require, so you may find some platforms will still fail to build projects. Whenever possible, we would recommend you leave case-sensitivity off when setting up your macOS machine.
Note that this FAQ assumes you already have an Apple Developer account, but if you are new to Mac development and/or do not have a Developer Account with Apple, then the following link will take you to a tutorial that explains everything related to getting your developer subscription and creating certificates, etc... https://www.raywenderlich.com/127936/submit-an-app-part-1
NOTE: As part of your developer agreement with Apple, you agreed to use a real, physical Mac to build and submit your apps. They have the right to terminate your dev account if they find you in breach. Accordingly, GameMaker Studio 2 support is for a physical Mac and we will not offer support to achieve running macOS in a virtual machine. You should own a Mac computer before beginning any macOS development.
To target macOS from the IDE, you use Target Manager, which is located in the top-right of the main GameMaker Studio 2 workspace:
For the macOS target platform you can see that there are two output options:
- VM - This will build your game using interpreted code.
- YYC - This will build you game using compiled native code.
The VM option will build your game and use interpreted code within a special YoYo Runner. The performance of this target is less optimised than YYC, but it is faster to compile and offers the ability to run in debug mode (when using YYC the debugger will not start). The YYC target however, gives a much greater optimisation (and corresponding performance boost) especially with logic-heavy games, but large projects can take some time to compile.
To compile your game using either the VM or YYC, however, you will need to make sure that your PC or Mac is correctly set up. PC users will have the additional step of setting up Device Manager so that GameMaker Studio 2 can communicate correctly with the Mac build machine.
Note: If you're using the Windows IDE, we would highly recommend the Mac is using Ethernet to connect to the PC, rather than WiFi, as this can result in issues when building large projects for YYC.
Set Up Your Mac
Before going any further, and if you haven't already, you will first need to download and install Xcode onto your Mac, which is what GameMaker Studio 2 will use to build your projects.
You can get the latest copy of Xcode from the macOS App Store or direct from the developer site here: https://developer.apple.com/xcode/
Be aware that due to the nature of Apple's toolchain and AppStore requirements, the version of Xcode required to be able to submit to the AppStore is periodically raised, and typically new major versions of Xcode support only the most recent 2 or 3 versions of macOS at most. Accordingly, GMS2's required version of macOS and Xcode has to match this in order to stay App Store-compliant, which may mean that if you're on an older OS you will need to update or even use a different Mac.
Usually, if you're not building for the AppStore, then you can remain on older versions of Xcode and macOS for a little longer - however, be aware Apple will still impose minimum versions on this also, and there is nothing we can do about this.
Please see our GMS2 Required SDKs FAQ for the current supported versions of Apple's software and what you actually need to install.
Set Up Xcode
Once you have downloaded and installed Xcode, you need to link it with your Apple Developer account so that it can use the required certificates to build your projects. For that you need to follow these steps:
- Go to Xcode > Preferences.
- At the top of the window, click the Accounts button.
- In the lower-left corner, click the Add button (+) .
- Choose Add Apple ID from the pop-up menu.
In the dialog that appears, enter your Apple Developer ID and password and then click Sign In. Your different certificates will now be retrieved. Select the Apple ID you just added and then on the right of the window click the Team Name and then the button Show Details. This should show all the different signing identity certificates options that you have:
Set Up Communications Between Your Mac and PC
(If you are using the Mac IDE and don't need to connect to a PC, then you can go directly to the section Set Up Your macOS Preferences further down on this page.)
If you are using the Windows IDE, then you now need to set up your Mac to permit remote login and file-sharing to and from your PC .
This is done by going to the System Preferences app and then clicking Sharing. Now follow these steps:
- Select the Remote Login checkbox first then the File Sharing checkbox. In File sharing, click Options.
- Select "Share files and folders using SMB."
- Select the checkbox next to the user account that will be used to share files with Windows users, enter the password for that user, then click OK.
- Click Done.
- Open Network preferences (choose View > Network), select your active connection, then click Advanced.
- Click the WINS tab, then enter the workgroup name used by the Windows computer.
- If you don’t know the workgroup name, on the Windows computer open Control Panel > System and Security > System. (Windows computers normally use either WORKGROUP or MSHOME.)
- Click OK, then click Apply.
Adding Your Mac Device(s)
(Mac IDE users you will already have a "Local" device added automatically by GMS2, so you don't need to create a new device unless you actually have other physical Macs you'd like to target as build machines.)
Back in GameMaker Studio 2 and in Target Manager, you can see that there is a section marked Devices. You will need to supply at least one Mac device, so click the small "pencil" button:
This opens the macOS section of Device Manager, where you can add one or more Macs to use as build machines. Click the Add New Device button and then fill out the details (below you can see an example of what information is expected):
The top field, Display Name is simply a name that you can give to the device so that it is easy to identify in the devices list. The Host Name is the IP address or Device Name of the Mac system on the network. The User Name and Password are for the macOS user account that will be used on that Mac. We would recommend that you leave the Install Folder value as the default whenever possible.
To get the IP address or network name of the Mac system, open the System Preferences app on the Mac and then open the Network component.
When that is setup, you can then click the Test Connection button, and if you have installed all the required packages and the Mac machine is visible over the network, then it should say all was successful:
Now ensure you click the Apply or OK button in Device Manager to save this new device!
Set Up Your Platform Preferences
Now that you have set up Xcode on the Mac and selected your build device inside GMS2, you need to perform one final task before you can start to build and test projects, and that is to set up the macOS Preferences.
So, open Preferences (from the File menu on Windows and the GameMaker Studio 2 menu on Mac) and under Platform Settings > macOS you need to specify your Team ID, which is what Xcode will use to identify you when selecting which signing certificates to use:
NOTE: You can find your Team ID from the "Membership" section of your Apple Developer Account.
(If you are reading this guide because you were sent here from the iOS or tvOS guide, then as well as configuring macOS above, make sure you also configure iOS/tvOS as you require, as it's the same Team ID value you will need there also...)
You can now click the "Apply" or "OK" buttons, close the preferences and continue on to testing a project.
Testing Your Projects
You are now ready to test your project. Regardless of whether you are on a PC or a Mac, or whether you are using the VM or YYC output, you can simply click the "Play" button on the menubar and the game will quickly build. If all has gone correctly your project should now run (although, with YYC compile times may be longer than for VM).
Note that you can also test your game using the "Debug" button on the menubar. When clicked, this will always run a VM version of the game (there is no YYC debugger) and load the debugger UI inside GMS2 at the same time. The debugger then permits you to see in detail how your game is performing, as well as set breakpoints and use these to check for issues or eliminate bugs. For more information about the debugger and what you can do with it, see the manual. Be aware that running the debugger may require some extra permissions from the OS in terms of allowing firewall access, etc.
Ready To Publish?
When you are ready to publish your macOS app, you will want to compile a final executable package. This is explained in the following article: