Sapience level Non-sapient
Average length 5-7 ft. (estimate)
Location / range Tuchanka
Diet Omnivore
Social unit Pack
Nature Aggressive
Population status Abundant
Danger rating Extreme threat

More Mass Effect species

Varren are omnivores with a preference for living prey.

The krogan have had a love-hate relationship with varren for millennia, alternately fighting them for territory and embracing them as treasured companions. To this day, krogan—and some other species, including batarians—raise them as beasts of war.

Varren is apparently a popular food source, as advertisements of a "Fish Dog Food Factory," which serves varren skewers as well as varren steaks, can be heard on Illium.

Anatomy and appearanceEdit

A common subgenus of varren has metallic silver scales, leading to the rather unusual nickname 'fishdogs'. Varren also appear in a brown-striped variety. Varren display jaw articulation similar to that of a snake, suggesting that varren are capable of swallowing prey whole.


Originally native to the krogan homeworld of Tuchanka, they are—like most life from Tuchanka—savage, clannish, and consummate survivors. They are pack hunters when vulnerable prey is readily available and become scavengers when outnumbered or outclassed. Their supreme adaptability, vicious demeanor and rapid breeding cycle have made them ubiquitous and dangerous pests on many worlds. Virtually everywhere the krogan have been, varren infestations have followed, wreaking havoc with the native ecology.

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