...To Be Left Alone

...To Be Left Alone is a challenge in Risk of Rain 2. It is completed by surviving the wave-based challenge of the Void Fields, a Hidden Realm found by activating the Null Portal in the Bazaar Between Time.

Completing this challenge unlocks the character Acrid, added in the Hidden Realms update.

Trivia
The name of this challenge refers to the ending quote from Risk of Rain when completing the game as Acrid. The entire quote is "...and so it left, with a new hunger: to be left alone."