Welcome to junior-level interactive fiction from Infocom!
Title screen from the "grey release" version of the game.
You can ask NPCs questions.
Inside your submarine, the Scimitar.
Heading out into Frobton Bay.
The sonarscope uses ASCII graphics. (Graphics in an Infocom game? GASP!)
Blast the torpedoes and full speed ahead!
A Science World magazine.
Circuit temperature is rising! She can't take much more of this, Captain!
It's a whale!
Hazardous operation? It's a good thing that I paid up on those insurance premiums.
Arriving at the Aquadome.