[1] Blue Planet is set on the alien water world Poseidon, where human colonists fleeing an irreparably damaged Earth, Terran megacorporations looking for a rare ore and the indigenous aliens who live in the extensive oceans clash over how to use and steward the planet's resources.

[2] The game includes genetically "uplifted" dolphins and orcas as playable characters on either side of the native/Terran dichotomy.

"[3] In the August 1998 edition of Dragon (Issue 250), Ray Winninger was impressed by the body of research behind this game.

He concluded with a guarded recommendation: "Blue Planet's setting is one of the most creative and unusual in recent memory.

[1][6] The revised edition consisted of two core books, the Player's Guide and the Game Master's Guide, which streamlined the second edition rules and added material originally published in the Fluid Mechanics and Natural Selection supplements.