Heartseeker

This mod takes direct inspiration from Terraria's Life Crystals, starting the player off with just three hearts, forcing them into exploration to find more. You'll have to track down these crystals in the rarest of places to complete your health pool, making the beginning of your adventure incredibly perilous, but in the end all the more rewarding.

Everything from starting health to how quickly you consume Life Crystals is completely configurable, consider installing Mod Menu to easily configure features to your liking.