It is a story of a small journey that doesn't take that long. Please pick it up and try to open the "door". In "A Short Game of Opening Doors," you walk through a fantastic world and collect "Money" and "Delight" to open doors and move forward. The game is a 3D adventure game in which you walk through a slightly fantastical world, collect "Money" and "Delight", and try to open the door and move on. Don't worry, there are no difficult actions, ferocious monsters, or overly complicated puzzles. If you walk, the story will move forward as much as you walk.