Talk:Seamoth/@comment-36485326-20181229201059/@comment-4695597-20181229215923

The hatch is on top of the Seamoth. Since Subnautica takes place in the far future, I assume that the Alterra Corporation has managed to develop a door-sized energy field that is watertight, yet can still allow solid objects to pass through, as this happens with the seabase hatches as well.