Safecracker: The Ultimate Puzzle Adventure Hints

What are these marks on the top of the door?

  • 1 of 3: These are important. Take a close look; what do they look like?
  • 2 of 3: Don't they look something like calculator numbers, but with some of the marks missing?
  • 3 of 3: Four of the doors on the second floor have these marks on the top. Draw them when you find them; you'll need them at the end of the game.