Decay: The Mare is a 3D psychological horror adventure game developed by Daedalic Entertainment. The game is an homage to Resident Evil, Silent Hill, and classic horror adventure games like Phantasmagoria, The 11th Hour, and Gabriel Knight. The game follows the story of Sam, an addict who finds himself in an institution called "Reaching Dreams" to get rid of his addiction and start a new life. However, things take a dark turn, and Sam gets stuck in an endless nightmare.

The game offers a compelling, high-tension adventure that is available in one package, including an exclusive third chapter that brings Sam's journey to an end. With amazing atmosphere, art, and music, Decay: The Mare offers a scary and deep story that is sure to keep players on the edge of their seats. The game also features challenging riddles and puzzles that will test players' problem-solving skills. Additionally, players can unlock achievements and collect all Steam Trading Cards to receive exclusive emoticons and profile backgrounds.