Goldberg Emulator is described as 'Steam emulator that emulates steam online features. Lets you play games that use the steam multiplayer APIs on a LAN without steam or an internet connection' and is an app in the Gaming Software category. There are more than 10 alternatives to Goldberg Emulator for a variety of platforms, including Mac, Linux, Wine, Chrome OS and BSD. The best alternative is Proton, which is both free and Open Source. Other great apps like Goldberg Emulator are PlayOnLinux (Free, Open Source), Parallels Desktop (Freemium), CrossOver (Paid) and Darling (Free, Open Source).
Parallels Desktop gives Mac users the ability to run Windows, Linux or any other operating system and their critical applications at the same time as macOS. Parallels Desktop is optimized for Intel and Apple M1 chip.
Darling — macOS translation layer for Linux Fast Darling runs macOS software directly without using a hardware emulator. Free Like Linux, Darling is free and open-source software. It is developed openly on GitHub and distributed under the GNU GPL license version 3.
Currently optimized for ARM Chromebooks, ExaGear Windows Emulator allows you to run full-function versions of Windows PC applications directly on Chromebooks and ARM-based Android devices with a connected keyboard and mouse.
Wineskin is a tool used to make ports of Windows software to Mac OS X. The ports are in the form of normal Mac application bundle wrappers. It works like a wrapper around the Windows software, and you can share just the wrappers if you choose. Best of all, its free!