'Nier Replicant' Fishing Guide: How to Fish, What Bait to Use and Where to Get Sardines Fishing is one of the many activities you can do in "Nier Replicant." It is also one of the missions that you need to do to progress further into the game's storyline. Photo : Anton Maksimov juvnsky/Unsplash Fishing is one of the many activities you can do in "Nier Replicant." It is also one of the missions that you need to do in order to progress further into the game's storyline. One of which is the quest where you need to catch 10 Sardines in "The Fisherman's Gambit."