Z64K (2019/05/29) 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:
29 May
Added Atari 2600 TigerVision cartridge support. (extension .3f)
Fixed behaviour of IO range de00-dfff when no cartridge has been inserted on startup.

Download: Z64 (2019/05/29)
Source:Here