Doki Doki Princess Investigator arose from playing with the Orteil insanity game generator. The prompt was "An FPS in which you investigate princesses in a fantasy world."
To play: Press space or click anywhere to advance the story. Look at the evidence, interview princesses, and examine their luggage to determine which princess is attempting to assassinate Princess Kathleen of Romania! If you let the culprit pass by you, Princess Kathleen may be killed before you finish your investigation.