Tech riderRev. 21 Sept 2026
- 1Runs onLinux, Mac, Windows
- 2CostsNot stated by the maker
- 3Supported platformsWindows, macOS and Linux via Java runtime
- 4Disk and tape formatsD64, D71, G64, G71, IMD and CRT
- 5Built-in debuggerYes
- 6Emulated C64 variantsCommodore 64
5 lines stated Written from the maker's own pages: z64k.com

Overview
Z64K is ranked #8 of 30 in Commodore 64 emulators on Specifiction. It runs on Linux, macOS, Windows.
Compared on Commodore 64 emulators
Facts
- Emulated systems
- Z64K describes pixel exact emulation of the Commodore 128, Commodore 64, Spectrum 48/128K, VIC 20, and Atari 2600.z64k.com · 3 Oct 2026
- Runtime
- The site says Z64K should run on any platform with an updated Java runtime environment and requires JRE 8 or better.z64k.com · 3 Oct 2026
- Download
- The homepage lists Z64K.jar and companion command-line, changelog, and quick-guide files for download.z64k.com · 3 Oct 2026
- C128 controls
- The emulator supports C128-specific keyboard shortcuts, including toggling its second display and switching 40/80 display mode.z64k.com · 3 Oct 2026
- SID Analyzer
- The changelog says version 2 added a SID Analyzer with waveform, envelope, oscillator, and combined display modes.z64k.com · 3 Oct 2026
- Disk image support
- The changelog documents support for loading and saving G71 images, including saving MFM tracks, and support for loading IMD images.z64k.com · 3 Oct 2026
- Virtual filesystem limit
- The changelog says the Virtual FS scratch command simulates deletion but does not currently delete files from the host file system.z64k.com · 3 Oct 2026
- Experimental feature
- The changelog describes the Virtual FS device as experimental and still a work in progress.z64k.com · 3 Oct 2026
- Support
- The homepage invites users to contact the maker with feedback or questions via its contact page.z64k.com · 3 Oct 2026
- Recent changelog entry
- The homepage changelog lists a C128 VICIIe IRQ flag fix dated 14 April 2025.z64k.com · 3 Oct 2026
- Purpose
- Z64K describes itself as providing pixel exact emulation of the Commodore 128, Commodore 64, Spectrum 48/128K, VIC 20, and Atari 2600.z64k.com · 3 Oct 2026
- Platform compatibility
- The maker says Z64K should run on any platform with an updated Java runtime environment installed.z64k.com · 3 Oct 2026
- Linux setup
- Linux users might need to change the Z64K.jar file permissions to allow execution.z64k.com · 3 Oct 2026
- Keyboard controls
- Listed shortcuts include fullscreen, clipboard text copy and paste, reset, mouse capture, and warp mode.z64k.com · 3 Oct 2026
- C128 display controls
- For C128, ALT+O toggles VICIIe/VDC output to the main screen and ALT+2 toggles the second display.z64k.com · 3 Oct 2026
- C128 keyboard
- The page describes extended C128 keys, including function key mappings and an option to enable or disable extra keys.z64k.com · 3 Oct 2026
- Site updates
- The maker says the changelog includes changes not shown on the homepage.z64k.com · 3 Oct 2026
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Where it ranks on Specifiction
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Sources
- z64k.com· checked 3 Oct 2026