These instructions are for version 420 or later of the simulator client, which will be available within a few days of this post.
Here are detailed installation instructions for our simulator client on Mac OS. Please use this thread to ask any questions or discuss any issues you may encounter.
Visit the client download page and follow the instructions.
Why do I need to install the .NET Core SDK?
You technically don't need to install the entire SDK, but that is the easiest way to get all of the proper prerequisites installed. Having the .NET Core SDK on your computer won't hurt anything, so we recommend saving yourself a lot of trouble and just install the SDK provided by Microsoft.
Why do I get these warnings about an unsigned app?
Mac OS by default will not run an application that is not signed by an Apple "identified developer." You need to explicitly allow an unsigned application to run the first time.
In general, it's fine to run an unsigned app as long as you trust the source that you got it from! In our case, make sure that you downloaded the client directly from our secure download page linked above, and not from any third party.
Maybe one day we'll look into signing it, but for now that is not possible because Apple requires that you sign it using a Mac computer, which we don't have!