The professor was known to be an eccentric genius. His greatest achievement was an amazing machine which could immerse one in virtual reality, as simple as opening a door and stepping inside. In recent months, he worked on the project, “100 Doors” virtual puzzle. Being a big fan of logical tasks, he became obsessed with the development of the puzzle and lost all contact with the outside world. Those who knew the professor feared the worst.

For the past twenty-four hours, the professor has not returned from the virtual world! You should make every effort to find the professor, solving complex problems until you reach him! Good luck, and may your wits be enough to conquer the virtual world!

A new adventure in the “100 Doors” series is here! More amazing rooms and floors, gorgeous graphics and most importantly, exciting puzzles await you!

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// Option A //

To download 100 Doors Full mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download 100 Doors Full mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download 100 Doors Full from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search 100 Doors Full in HappyMod App.