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Biology Underrail ((hot)) May 2026

Have you ever beaten the Rathound King using only bio-induced fear? Let me know in the comments below.

Let’s talk about . Not the high school subject about frogs and photosynthesis—the Underrail kind. The kind that turns the mutant flora of the metro tunnels into liquid gold. biology underrail

Early game, pick every mushroom. Pick every root. Craft Antidotes . Antidotes cost basically nothing to make (a few common plants), but they sell for a fortune to doctors. You can clean out a vendor’s entire ammo stash just by selling them the cure for a poison they don’t even have. You don't need to max Biology. You don't need to be a Biologist instead of a Sniper. You just need to respect it. Have you ever beaten the Rathound King using