100 Doors - Underground is a new puzzle game developed by Tedven LLC, available for Android users. The game is part of the "Room Escape" category, where the player must use their puzzle-solving skills to find the way to open each door and proceed to the next room.

With 30 challenging levels, 100 Doors - Underground offers unique brain teasers and challenging logic puzzles that will keep you hooked for hours. The game is easy to start but hard to put down, and it comes with an auto-save function that allows players to stop and resume the game at any time.

The graphics are delightful, and the game encourages outside-of-the-box thinking with its balanced difficulty. The best part? It is 100% free for Android users!

To play the game, players must find and combine items, solve mini-puzzles, and use their device (tilting, shaking, 2-finger sliding, and swiping) to progress through each level.