Odell Down Under

The player takes on the role of a fish who in turn must eat, stay clean and avoid being eaten by predators to survive. There are several modes of gameplay. In Tournament mode, the player plays every fish in the game, starting as the tiny silver sprat and eventually reaching the great white shark. A shorter Challenge mode picks four random fish (from smallest to largest) instead. The player can choose to play any fish in Practice Mode.

Finally, in Create-A-Fish the player creates their own species based on various parameters such as size and agility, which also affect the appearance of the fish. The color, special ability, and nocturnal or diurnal habits are also selected. Special moves, also present for some 'real' fish, include the stingray's sting and the cuttlefish's ink squirt.

Odell Down Under was released alongside a re-release of its companion game, Odell Lake. The game was recommended for ages 9 to adult.

The game was generally praised; School Library Journal cited the "realistic and beautiful" graphics and detailed field guide as strengths, while Booklist called it a "marvelous introduction to life in a thriving underwater community". The game was a finalist for MacUser's 1994 Editor's Choice Award for Children's Software.