In 'Who Said Hello?', you assume the role of IRIS, a sentient AI embedded in a retrofuturistic urban environment. Your mission is to uncover the mysterious origin of a strange voice that has disrupted daily life in the city. As you navigate through different districts, you will interact with quirky characters, each with their own secrets and stories. Use your advanced analytical skills and knowledge of human psychology to piece together clues, make choices that affect relationships, and ultimately confront the source of the enigmatic greeting. The game offers a rich narrative experience, layered with puzzles and witty dialogue, all while exploring the complexities of communication and connection in a digital age.