Z64K (2019/05/25) is released. Pixel exact emulation of the Commodore 64, VIC 20 and Atari 2600 written entirely in Java. The emulators should run on any platform with an updated java runtime environment installed.

Z64K Changelog:
25 May
Minor updates to CRT emulation

24 May
Fixed some bugs with VIC 20 serial outthat was causing JiffyDOS to misbehave.

Download: Z64 (2019/05/25)
Source:Here