Defeat Harlow

Make pact with Serpo

Find 50% of collectibles

Find and kill all named champion monsters located in dead zones

Gain access to a long-range radio station

Kill 10 monsters with one mine

Finish quests for Dr. Kessler

Clear out the cinema

Kill special enemies: Grenadier, Thug, Wrestler, Infected, Suicider, Screamer, Butcher, Floater.

Successfully defend the tunnel entrance

Kill 25 monsters with a chainsaw

Kill 100 monsters using the boat's speed boost

Kill 50 monsters by smashing, decapitating or shooting them in the head