Complete the tutorial

Reach The Mountains

Reach The Sunken City

Reach Hell

Survive in No Man's Land

Reach Level 10

Reach Level 50

Reach Level 100

Kill a Volunteer

Kill 10 Volunteers

Trigger a trap⸲ with fatal consequences

Acquire a mutation

Spend Knowledge points to max out a skill upgrade

Kill a Charger

Kill a Spitter

Kill a Leaper

Kill a Burster

Kill a Flamer

Kill an Armored Charger

Kill 1000 Infected

Survive a Horde

Interact with a Supply Cache

Collect 100 Knowledge

Discover the modified HERC device

Open the gates at the HERC checkpoint

Activate the radio tower

Lower the bridge in Leighton City

Complete the main quest line

Complete 5 Runs

Craft an item at a crafting station

Craft 25 items at a crafting stations

Craft an improvised weapon

Purchase an item from the travelling merchant

Collect 25 Supply Bags

Use Antiviral 25 times