What version?
would recommend joining the discord, you'll get a faster response there than here https://discord.gg/YNPp6tq
Either 1.0 or Modding Patch depending on the route you want to do. Check out the guides for the different routes.
Recent runs
Level: The Spaceship - Time Rift - Mailroom
Level: The Spaceship - Time Rift - Mailroom
Level: Mafia Town - She Came from Outer Space