Doors or Dooors app for iphone and also for Android is a room escape game from 58works which gained popularity last year in the puzzle genre. For those who are not familiar, it's a game where you solve clever puzzles in order to advance to the next room. On January 14, the maker of this game released an update which increased its number of levels to 75. All of those new levels are shown solved on this page.
This game may have simple graphics but the puzzles that it has are pretty clever in my opinion. It may also be very challenging to most people and even to seasoned escape game enthusiasts. Anyway, I gathered here Dooors/Doors level 61 to 75 walkthrough showing us the answers and solution.
See also:
Dooors guide level 1 - 35.