Completed the tutorial

Reached The Mountains

Reached The Sunken City

Reached Hell

Survived in No Man's Land

Reached Level 10

Reached Level 50

Reached Level 100

Killed a Volunteer

Killed 10 Volunteers

Triggered a trap⸲ with fatal consequences

Acquired a mutation

Spent Knowledge points to max out a skill upgrade

Killed a Charger

Killed a Spitter

Killed a Leaper

Killed a Burster

Killed a Flamer

Killed an Armored Charger

Killed 1000 Infected

Survived a Horde

Interacted with a Supply Cache

Collected 100 Knowledge

Discovered the modified HERC device

Opened the gates at the HERC checkpoint

Activated the radio tower

Lowered the bridge in Leighton City

Completed the main quest line

Completed 5 Runs

Crafted an item at a crafting station

Crafted 25 items at a crafting stations

Crafted an improvised weapon

Purchased an item from the travelling merchant

Collected 25 Supply Bags

Used Antiviral 25 times