Door is a puzzle video game developed and published by SVGames.
Game information[]
The player is faced with four different themed doors, each one leading to four doors with nine levels. On these doors are either numbers, shapes, letters or blank pages and the only hint is what is written on a board which the player must figure out. If they get through the correct door, they can move on; if not, they have to start from the beginning again.
There are two modes: Casual and Einstein.
Series background[]
Jack only managed to complete one level and has stated that he will not try any of the other levels.