This is the only World is a game where you are stuck in level 1 where you cannot move on to level 2 and have to repeat level 1, each time in different ways.
It was based on a flash game called “This is the only level”. Even though you have to repeat the same level, it’s a different difficulties every time and you have to do this for 17 times. Rest assured it’s the same room and levels but with different actions and puzzles to be solved.
Not only that, the game added a second level, an original room thought by the developer and again there are 17 different puzzles for the level 2.