'The Kaiyo Mission’ is about peaceful yet dangerous space exploration in hostile underwater environments of ocean worlds. The players embark in three different mission phases that lead them to various underwater plateaus of ocean worlds, including the Saturnian moon Enceladus. They will control a submarine or a diver and take photographs of alien animals, plants and artefacts. A tutorial level is available, and a bonus mission phase with several self-contained games is opened upon successful completion of the initial three phases.