Rage - Wasteland Sewer Missions

There are nine sewer areas in total: seven in the Northern Wasteland and two in the Eastern Wasteland. Each sewer has an entrance and exit hatch, but the player can only enter through the entry hatch. It's recommended to be prepared to confront scores of angry mutants. In addition, the sewers contain a wide range of objects the player can collect and sell for a profit. Each sewer area has a loot pile, resembling a stack of bones and skulls. These loot piles contain the most valuable objects, including a Mutant Adrenal Gland: a rare ingredient required to make Adrenaline Overdrive.

About the base game:

RAGE is a groundbreaking first-person shooter set in the not-too-distant future after an asteroid impacts Earth, leaving a ravaged world behind. You emerge into this vast wasteland to discover humanity working to rebuild itself against such forces as bandit gangs, mutants, and the Authority – an oppressive government regime that has a special interest in you in particular. Featuring intense first-person shooter action, breakneck vehicle combat, an expansive world to explore and jaw-dropping graphics powered by id’s revolutionary id Tech 5 technology, RAGE promises an experience like no other.