Z64K Beta (2018/08/27) 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:
Assign some default values to VDC registers to ensure it's in a stable state for display at startup when loading cartridges like Action Replay via command line.
Fixed error where emulator would crash with VDC resolution of 0,0 when starting c128 in 80column mode
Fixed cursor display behaviour. Display of Soci's Test 2 shows 1st @ symbol correctly
Implemented VDC Character vertical size control (register 23).
Variable character pixel sizes supported. Improved display of Soci's tests in the VICE Test repository and Tokra's Big Text modes in VDC mode Mania.
Improved reporting of video information in emulator console via help menu.

Download: Z64 Beta (2018/08/27)
Source:Here