Dark Fall II: Lights Out Hints

What's the combination for this puzzle box?

  • 1 of 6: Do the symbols on the keys look familiar?
  • 2 of 6: You may not have seen these exact ones, but I bet you've seen something like them about the place.
  • 3 of 6: Like with Roman numerals under them.
  • 4 of 6: There are only four keys, so you only need the symbols marked I, II, III, and IV.
  • 5 of 6: Press the symbol that was marked I first, then the one marked II, then III, then IV.
  • 6 of 6: Label the keys A through D, then push them in this order: C, A, D, B.