The game contains many aspects of a “Berlin” roguelike : procedurally generated levels, perma-death, polymorphism, turned-based melee combat etc. The design is highly compressed like most Brough games and is easy to pick up and play.
The story is inspired by the 1966 movie “Fantastic Voyage” where a submarine is shrunken to microscopic size and injected into a patient’s blood stream with a small crew. Problems arise almost as soon as they enter the bloodstream. In this case, you’re a single person in a survival suit.
Those problems come in the form of antibodies roaming around looking for foreign invaders (you).
There are also nano-bot remnents scattered around which can be collected and used. Using an item for the first time reveals its properties.
