2.0dev / 27-07-2020



Z64K runs on any platform with an updated Java Runtime Environment installed. 

It runs multiple computing devices such as Atari 2600 (cycle-accurate 6507 & pixel-accurate TIA emulation), Commodore 64 (cycle-exact 6510 including all undocumented instructions, CIA 6522/6522a emulation (cycle-exact SID 6581 emulation based on reSID, etc.), Commodore 128 (All features of C64 with most VDC features), Z80 processor emulated though not 100% cycle accurate, VIC 20 (cycle-accurate), Disk drive support (CBM 1541, CBM 1571, CBM 1581) and much more.




RequirementJava Runtime Environment 7+


Note: JAVA 9 and 10: use the –Dsun.java2d.uiScale=1.0 option, if the screen does not render nicely on your setup. 

See bug for details..

Most Recent Changes 

Version 2 of Z64K Only

  • add soundrate and soundbufsize as commandline options

  • Include Atari 2600 select option keys in hot key help.

  • Add Game Select and Game Reset buttons into Atari 2600 toolbar.

  • update 856x versions of VICII behavior when switching from bitmap to  text mode as seen in VICE test repository modesplit test program.Atari 2600 drop and drag cartridge

  • Save machine model settings (c64 and c128 only)