In the game Detroit:Become Human in the games opening/first mission you play as Connor 1 of the 3 main characters your objective is to rescue Emma Phillips who is taken hostage by Daniel a PL600 model android, the reason Daniel took the girl hostage and killed the dad was that he was going to be replaced. After leaving the elevator you stumble across a fish ("Dawey" is the name of the fish More information is on: https://detroit-become-human.fandom.com/wiki/Dewey?so=search ) that is lying on the ground trying to live and if you interact with the fish you can either leave it to die or save it. After the games release people started to post on reddit about the fish like these posts:
https://www.reddit.com/r/DetroitBecomeHuman/comments/l697o4/save_the_fish/ and https://www.reddit.com/r/DetroitBecomeHuman/comments/cqxwxz/i_didnt_save_the_fish/ and etc.