The Hidden and Unknown is a 2023 visual novel by indie developer ProX that gained notoriety for its $1,999.90 price tag on Steam. The text-based game focuses on psychological and philosophical themes, with a short runtime designed to fit within Steam's two-hour refund window. Critics and players have heavily scrutinized the game's high cost, controversial content, and short duration. Detailed player reception can be found in the Steam Community . The Hidden and Unknown - Steam Community