Blue Planet (TTRPG series)
Originally published in 1997 by Biohazard Games and recently revived with Blue Planet: Recontact, Blue Planet is widely considered a pioneering and successful example of ‘hard’ eco-science fiction in the tabletop RPG space. The game is set in 2199 on Poseidon, an alien waterworld that humanity has fled to following a devastating, 70-year ecological collapse