0.1 (indicates an initial alpha release or public demo).
Most files using this naming convention follow a standard internal structure: Unexpected-0.1-pc.zip
If the software causes system reboots or "Kernel Power" errors, ensure your graphics drivers and BIOS are up to date. Joy by Spongey Kitty Games - itch.io no traditional "installation" is typically required.
Only download such files from the developer's official Patreon or Itch.io project pages to ensure the file has not been tampered with. Unexpected-0.1-pc.zip
Double-click the application file to run the game; no traditional "installation" is typically required.