Was this game based off of some old tumblr post a while ago about a fishing game with fish that gradually turn more and more mutated even though the game plays it straight?

[Armas]

title

[Greenegg]

Highly doubt it, pretty sure it's just based off lovecraft stuff, specifically stuff like shadow over innsmouth.

[Dream Goddess]

Saw a dev comment on reddit they saw the post after eight month in development! They didn't know of it beforehand

[Lod101]

there is a FAQ.

Miscellaneous

Did you get the game idea from a Tumblr post?
Nope, none of us even used Tumblr! We discovered that post after we started making the game.