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The primary character in Limbo is a nameless boy, who awakens in the middle of a forest on the "edge of hell", where he encounters a giant spider who tries to kill him. As the player will likely encounter numerous deaths before they solve each puzzle and complete the game, the developers call Limbo a "trial and death" game. Some deaths are animated with images of the boy's dismemberment or beheading, although an optional gore filter blacks out the screen instead of showing these deaths. Some traps can be avoided and used later in the game one bear trap is used to clamp onto an animal's carcass, hung from the end of a rope, tearing the carcass off the rope and allowing the branch and rope to retract upwards and allow the boy to climb onto a ledge otherwise out of reach. The player is able to restart at the last encountered checkpoint, with no limits placed on how many times this can occur. Many of these traps are not apparent until triggered, often killing the boy.
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The game's second half features mechanical puzzles and traps using machinery, electromagnets, and gravity.
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Among the hazards are glowing worms, which attach themselves to the boy's head and force him to travel in only one direction until they are killed. Limbo is presented through dark, greyscale graphics and with minimalist ambient sounds, creating an eerie, haunting environment. The dark visuals also serve to conceal numerous lethal surprises, including such environmental and physical hazards as deadly bear traps on the forest floor, or lethal monsters hiding in the shadows. As is typical of most two-dimensional platform games, the boy can run left or right, jump, climb onto short ledges or up and down ladders and ropes, and push or pull objects. The player controls the boy throughout the game. Playdead called the style of play "trial and death", and used gruesome imagery for the boy's deaths to steer the player from unworkable solutions. The developer built the game's puzzles expecting the player to fail before finding the correct solution. The player guides an unnamed boy through dangerous environments and traps as he searches for his sister. Limbo is a 2D side-scroller, incorporating a physics system that governs environmental objects and the player character. The game was released on Jfor the Nintendo Switch. Limbois a puzzle-platform game developed by independent studio Playdead.
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