Game is Fields of Mistria.

Some context: There's a dungeon with multiple areas with each having a seal you need to break so you can enter, and to break each seal, you need to find particular items.

To get to the final dungeon area, you need to find a rare fish called the Firesail fish, to which the RNG gods have not been in my favor. I'm nearing an in-game year and have a whole section dedicated for fishbait to try and catch this elusive dude but its just not happening yet.