Ada Rook is a Canadian artist who creates both games and music. As a musician, she has released solo work under her own name as well as the moniker Crisis Sigil. She is also part of several bands, including DOOR EATER, rook&nomie, Angel Electronics, and was one half of the band Black Dresses (2018-2024). In addition to her musical career, Ada Rook has developed several games, with her most recent and best known title being Fallow.