The completely in Java written C64 emulator Z64K has been updated. Z64K emulates the following systems: C64, C128, VC 20, Atari 2600.
Yace64 is "yet another commodore 64 emulator", which offers various 3D features.
Kernal64 is a Commodore 64 and 128 emulator written in Scala.
VirtualC64 is a C64 emulator for Mac OS from Dirk W. Hoffmann.