# SU is a 2.5D deduction puzzle game. Nautilus submarine suffers failure during voyage. Dr. Pierre investigates anomalies. The submarine encountered a mechanical failure during its voyage, and Dr. Pierre rushed to investigate, only to discover anomalies invading every area. Explore the mystery beneath the azure depths, follow Dr. Pierre to unravel the secrets of the Nautilus. Background: 1866 Dr. Pierre is the owner of the Nautilus, and he and 7 sailors accidentally salvaged a "compass" during their voyage. This compass allowed him a glimpse of his true position in the universe, but it also caused the Nautilus to sink into the vortex of time. 2998 "SU" is a student from a future city. During an underwater trip, she encountered an ancient submarine trapped in time and space. SU entered the submarine for an adventure but was captured by the time vortex and transported to an unknown space-time. Gameplay: Players take on the role of Dr. Pierre. Interact with time-stamped objects to transcend time and gather more clues. Explore intriguing "time wormholes" and various items to uncover the truth behind the story. Objective: Utilize time stamps to solve the mystery of the Nautilus. Unravel the truth behind the time vortex.