Riven: The Sequel to Myst is a graphic adventure puzzle game developed by Cyan and released in 1997. It continues the story of Myst, following the player’s journey to rescue Atrus’s wife, Catherine, from a decaying world. The game features pre-rendered environments with complex, interconnected puzzles and minimal direct guidance. Its visuals, sound design, and world-building were praised for their depth and realism. Riven expanded on Myst’s narrative and gameplay scale, becoming one of the most acclaimed adventure games of its time.