100 Doors Challenge 2 – an interesting game on android, where you will open locked doors. In this game you find yourself locked in a mysterious castle, where each room is not like one another. Open all doors, using for this purpose all your logical and mental skills and solving difficult problems. Each new level of the game has many new puzzles and puzzles for you, which will not be so easy to solve. Look for the keys you need, open complex mechanisms and select the correct codes. Play this game and find all the items you need to open the doors. Use hints in difficult situations and go through mini-games.