Shackled is a single-player and multiplayer action, shooter, casual, and arcade game in which players navigate through maze-like levels, shooting enemies and collecting treasures and keys to progress. In this game, players explore various levels set in a maze environment, facing enemies and solving puzzles to advance through the game. It stands out with its fast-paced gameplay, retro graphics, and the challenge of managing resources while battling enemies, offering a nostalgic experience across multiple classic platforms such as Atari ST/STE, ZX Spectrum, Arcade, Amstrad CPC, and Commodore C64/128/MAX.