Fathom (video game)

Fathom is a 1983 action-adventure game published by Imagic and designed by Rob Fulop. It was the last game Rob Fulop would design for Imagic, and one of the last games Imagic would publish before its closure. Fathom was initially released for the Atari 2600 in August 1983. It would later be ported to the Intellivision, Colecovision, and TI 99/4A. The player controls both a dolphin and a seagull in order to collect the missing pieces of a broken trident and save a mermaid trapped at the bottom of the ocean.