How to play GEOS on Mac
Game summary
GEOS (Graphic Environment Operating System) is an operating system from Berkeley Softworks (later GeoWorks). Originally designed for the Commodore 64 and released in 1986, it provides a graphical user interface for this popular 8-bit computer. GEOS closely resembles early versions of the classic Mac OS and includes a graphical word processor (geoWrite) and paint program (geoPaint).
A December 1987 survey by the Commodore-dedicated magazine Compute!'s Gazette found that nearly half of its readers used GEOS. For many years, Commodore bundled GEOS with its redesigned and cost-reduced C64, the C64C. At its peak, GEOS was the third-most-popular microcomputer operating system in the world in terms of units shipped, trailing only MS-DOS and Mac OS (besides the original Commodore 64's KERNAL).
First released: Feb 1986
Play GEOS on Mac with Parallels (virtualized)
The easiest way to play GEOS on a Mac is through Parallels, which allows you to virtualize a Windows machine on Macs. The setup is very easy and it works for Apple Silicon Macs as well as for older Intel-based Macs.
Parallels supports the latest version of DirectX and OpenGL, allowing you to play the latest PC games on any Mac. The latest version of DirectX is up to 20% faster.
Our favorite feature of Parallels Desktop is that when you turn off your virtual machine, all the unused disk space gets returned to your main OS, thus minimizing resource waste (which used to be a problem with virtualization).
GEOS installation steps for Mac
Step 1
Go to Parallels.com and download the latest version of the software.
Step 2
Follow the installation process and make sure you allow Parallels in your Mac’s security preferences (it will prompt you to do so).
Step 3
When prompted, download and install Windows 10. The download is around 5.7GB. Make sure you give it all the permissions that it asks for.
Step 4
Once Windows is done installing, you are ready to go. All that’s left to do is install GEOS like you would on any PC.
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