| Console: | Atari 2600 |
| TV Standard: | Region Not Set |
| Developer(s): | Imagic |
| Publisher(s): | Imagic |
| Release Date: | 1983-01-01 |
| Players: | 1 |
| Co-op: | No |
| Type: | Action, Adventure |
Titans have imprisoned Neptina, Neptune's daughter! They've shattered his magical Trident and scattered its pieces far and wide. Without his trident, Neptune is powerless.
Proteus, a member of Neptune's Court, longs to free the lovely mermaid. He sets out to find the missing pieces of the Trident. He roams land and sea, changing from a dolphin to a seagull and back again in order to deceive the mermaid's captors. Deadly trials confront Proteus -- octopuses, tangled beds of kelp, screaming flocks of black birds, even erupting volcanoes! But he fights on valiantly!
Game Player of Fathom on Atari 2600Generally, you can review the controls (keyboard) setting during each game in the screen before it starts. Use the arrow keys and “Z”, “X”, “A”, “S”, “Q”, “E” buttons to play, or customize yourself with your gamepad or keyboard.
| Keyboard | Controls |
| ← → ↑ ↓ | Directions for LEFT, RIGHT, UP, DOWN |
| Enter ↵ | START |
| Shift | SELECT |
| Z | A |
| X | B |
| A | X |
| S | Y |
| Q | L |
| E | R |
