Logo Prof. Dr. Dirk W. Hoffmann

Release details
Version:3.3.2 (learn more)
Last update:May 25, 2019
File Size:12.5 MB (Zip file)
ROMs:not included
Project details
Project lead:Dirk W. Hoffmann
Project members:Credits
Operating system:macOS 10.13 or 10.14


VirtualC64 emulates a Commodore 64 personal computer on your Macintosh. I started the project in 2006 to create a virtual CPU environment that can be used as a demonstrator program in a first or second year of computer technology. Over the years I have added more and more features and the accuracy of the emulation has steadily increased. Despite one or two compatibility gaps, VirtualC64 is now able to run a large number of C64 programs without errors.


The VirtualC64 project is based on three major goals. First of all, I am trying to achieve high compatibility by emulating all components cycle accurately. Secondly, I want to create a fun-to-use emulator that presents itself as user-friendly as it can get. Last but not least I am trying to maintain a well-documented and easy-to-read codebase that makes it easy to add new features. If you agree with VirtualC64's philosophy, you are welcome to join the project. The core emulator is written in C++ and the graphical user interface is a native Cocoa application written in Objective-C. Please note that I don't want to port the emulator to any other operating system yet. VirtualC64 is open source software published under the GNU general public license.

Supported ROM images*
Kernel Rom:kernal.901227-03.bin Header:85 56 20 Size:8 KB
Basic Rom:basic.901226-01.bin Header:94 E3 7B Size:8 KB
Character Rom:characters.901225-01.bin Header:3C 66 6E Size:4 KB
VC1541 Rom:1541-II.355640-01.bin Header:97 AA AA Size:16 KB
or 1541-II.251968-03.bin Header:97 E0 43 Size:16 KB

*Due to copyright restrictions, ROM images are not part of the emulator.