Morse Runner is a Windows-based contest simulator developed by Alex Shovkoplyas, VE3NEA. Using Wineskin, it has been successfully and seamlessly run under OSX, and made available here for download. Sure, you could use Wineskin to do this yourself (and save me some bandwidth), or you can pull the ready-made dmg from here.
Running Catalina? Go to 'Download' to read the latest (and grab a box of tissues)

Whatever your reason, recognize what you are holding: A declaration that software is information, and that information wants to be free—not just in English, but in every accent, every dialect, every localized string of code.
Using asset files intended for a specific build of the game can cause instability. If the game receives an official patch (v1.1, v1.2) but the user is using a cracked v1.0 executable with older language packs, audio desynchronization or crashes may occur. Horizon.Zero.Dawn.Remastered.Language.Pack-RUNE...
: RUNE is a well-known "scene group" that releases cracked versions of AAA titles shortly after their official launch. General "Paper" Structure for a Game Analysis Whatever your reason, recognize what you are holding:
We are entering the era of . As games become live-service bloatware (100GB+), the Scene is learning to be surgical. No one wants to download 150GB of 8K texture packs for a game they will play on a 1080p monitor. : RUNE is a well-known "scene group" that
Do simply drag and drop the folder into your root directory. Follow this exact sequence to avoid corrupted saves or missing audio.
Confirmed working on: El Capitan, Mavericks, Sierra, High Sierra, & Mojave
MANY reports that it DOES NOT work on Catalina. It is very unlikely that it will work under Catalina in the near future, as it would require some pretty hefty development on Wine (they're working on it). The only other option I see is for some nice macOS developer to take the original code (it's open source!) and re-write it to run natively on 64bit macOS (go ask any developer, this is a lot of work). Since Xcode is now free if you're running Catalina, I'm happy to give it a try... when I can afford to buy a system that can run Catalina :)
If you have questions or comments about using this application under OSX, please email them to ki4stu k4iz at arrl dot net.