What are some alternatives?
When comparing Overtone - Gaming Comunication and Goldberg Emulator, you can also consider the following products
VMware Fusion - Simple and powerful virtual machine for Mac. Mac virtualization software. Learn more about VMware Fusion and try it free today.
Wine - Open Source Software for running Windows applications on other operating systems.
PlayOnLinux - PlayOnLinux will allow you to play your favorite games on Linux easily
Proton - Compatibility tool for Steam Play based on Wine and additional components
Fluid - Turn Your Favorite Web Apps into Real Mac Apps.
Cheat Engine - Cheat Engine is an open source memory scanner/hex editor/debugger for Windows.