Submachine 3: The Loop the fourth in the series of Submachine. Like its prequels, it is a point and click game. The game is about puzzle solving and exploring an infinite number of rooms. All levels are structured in the same fashion, with the exception of the puzzles. Your goal is to unlock the main exit so you can move up to the next level. You can move from room to room indefinitely but you have to solve the puzzle to level up.
And in case you get lost from the vast of rooms, use the coordinate system to go back to the original room. One good thing with this game is a code will be given in each level. Just key in this code to go back to the level you desire. If you love puzzles and challenges, you will surely enjoy this game.