Project Y had its world premiere at the
2025 Toronto International Film Festival on September 10, 2025. It was also screened in the 'Korean Cinema Today - Special Premiere' section at the
30th Busan International Film Festival on September 18, 2025. It was showcased in Stories of Women section of the 10th London East Asian Film Festival on October 25, 2025. It was also selected in the Competition strand along with other seven films, and it won the Best Film award in the competition. The film was screened in the World Cinema Now section of the
37th Palm Springs International Film Festival on 2 January 2026. The film is expected to be released in both South Korea and Japan simultaneously as per announcement made by the distributors
Plus M Entertainment. It was released in the Korean theatres on January 21, 2026. ==Reception==