Crimson Room (Japan title: 深紅の部屋) is a single-player puzzle game developed by Japanese game designer Toshimitsu Takagi for the Nintendo DS. The game is a point-and-click adventure game and is the first in the popular Crimson Room series. The objective of the game is to escape from a locked room. To do this, the player must find clues and objects hidden in the room to solve puzzles and ultimately make their way out. The player must also interact with the objects in the room to progress. The player starts the game in a room with no windows and only one door. The player must use the objects in the room to make their way out. The puzzles are challenging and require the player to think outside the box. The player must find clues and items to progress, such as keys and documents. The player must also use their logic and problem-solving skills to solve puzzles. The game has an eerie atmosphere, with a dark and mysterious soundtrack. The visuals are detailed and the puzzles are well-crafted. The game is designed to challenge the player, as well as provide an enjoyable and immersive experience. Overall, Crimson Room (深紅の部屋) is a unique puzzle game with an intriguing atmosphere. The game is well-crafted and provides an enjoyable and challenging experience. It is well worth playing for anyone looking for a unique and entertaining puzzle game.