Popular C64 emulator for the Mac, VirtualC64, has been updated to version 3.3.

The following updates have been recorded in the v3.3 changelog:


  • All emulator preferences dialogs have been merged into a unified preferences panel.
  • New options in the emulator settings allow the user to customize the actions taken when opening a media file.
  • The input device selection is now retained in the user default storage.
  • JiffyDOS Rom images have been added to the list of known images.

CRT Monitor emulation

  • Dot mask emulation has been modified to not darken the screen anymore.
  • It is now possible to set the bloom radius individually for each color channel.
  • Cathode rays can be shifted relative to each other.


  • Added support for the Expert cartridge.
  • Cartridge buttons are now displayed in the bottom bar as small (clickable) icons.


  • Now users can choose whether to save the emulator texture (low res) or the upscaled texture (hi-res).
  • If the menu item “Save Snapshot…” is selected, emulation is paused until the screenshot has been saved


  • Upgraded ReSID to the version used in VICE V3.3.
  • While the emulator is running, the sampling rate is adjusted automatically to reduce buffer underflows and overflows.
  • Fixed a bug that made FastSID unusable on audio hardware with a sample rate other than 44.1khz.

Joystick emulation

  • The assignment of keystrokes to joystick events has been improved when multiple keys are pressed at the same time.
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