Design effect illustration of the entrance to an escape room

Quick answer：

This refers to a visual representation of the design and appearance of the entrance to an escape room. Escape rooms are interactive, live-action, physical adventure games in which participants are 'locked' in a room and must use elements of the room to solve a series of puzzles in order to escape in a limited amount of time. The design of the entrance can be an integral part of the immersive experience, often incorporating thematic elements that set the tone for the game.