Official Software Updates

C64 OS is under active and on-going development.
Get the latest software updates here.


C64 Archiver and Installer.


C64 Archiver, Installer and CAR Files

C64 Archiver is an Application for C64 OS that creates archive files that contain C64 files, including all CBM FS metadata, and also retains their structure in nested subdirectories. The archive files produced are called CAR files.

CAR files are the standard way of distributing C64 OS software, but can also be used to distribute regular C64 software and other resource files too. Read the C64 Archiver and Installer guide to learn more about how to use these tools and how to install system updates.

System Updates

System updates will be added here as they become available.

Filename Release Date Required Version # Version # File Size CRC32 checksum
1.01.update.car 2022-11-20 1.0 1.01 53 KB, 209 blocks 70a2acfc

New Features

  • bootsect.128 in //os/c64tools/ allows C128 mode to autoboot C64 OS.
  • Added 4 new desktop backdrops: home, door, joystick inv, and settings.
  • Added the default desktop 5 backdrop to the backdrops directory.
  • Added 1351 mouse driver for port 2.

cksum number: 1531689060 See: C64 Archiver and Installer → Versions and Upgrades.

Other Software Releases

Other C64 OS software releases will be added here as they become available.

Filename Release Date Required Version # Version # CRC32 checksum


Last modified: Nov 21, 2022