Stardew Valley Mutant Grub  Mutant Grub


The Mutant Grub is a monster found in the Mutant Bug Lair. There is a Monster Eradication Goal of killing 125 Cave Insects for the Adventurer’s Guild, any Mutant Grub kills will count towards this.



Mutant Bug Lair20012016



Mutant Grubs will rush towards you in groups once you’re in their sight. It is crucial to kill off Mutant Grubs quickly once you start attacking them, as once their health drops below a certain point they will run away and start to form a cocoon. Once they’ve started this process, they will turn dark green and become invulnerable, eventually emerging as a Mutant Fly. When fighting multiple Mutant Grubs, it’s a good idea to try to pin them against a wall so they cannot run off. A weapon with knockback would help greatly.


Drop Table

ItemRarityBase Sell Price
Stardew Valley Bug Meat 48Bug Meat(60%)8g
Algae SoupAlgae Soup(10%)100g
 stardew valley White AlgaeWhite Algae(2%)25g
Ancient SeedAncient Seed(0.5%)5g
Bottom of The Mines Reached
stardew valley DiamondDiamond(0.4%)750g
Prismatic ShardPrismatic Shard(0.4%)2,000g


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