Aquanaut's Holiday is an underwater adventure game where players take control of a submersible to explore the ocean depths at their own pace.
As they dive into the unknown, players can discover sunken ships, statues, and other treasures, or interact with marine life using sonar technology. The game encourages exploration and discovery over fast-paced action sequences or point accumulation.
The gameplay revolves around navigating the underwater world, exploring shipwrecks, and interacting with sea creatures. Players can also leave underwater stations to mark points of interest for future study or build a customizable coral reef that will attract marine life.