Defeat 100 infected in total.

Defeat 1,000 infected in total.

Defeat 10,000 infected in total.

Rescue your first survivor.

Rescue 6 survivors in a single operation.

Begin your first operation.

Defeat 500 infected in total.

Defeat 5,000 infected in total.

Defeat 25,000 infected in total.

Defeat 50,000 infected in total.

Rescue 3 survivors in a single operation.

Complete Afterglow District on any difficulty.

Complete Fog Harbor Plant on any difficulty.

Complete Rust Rain Refinery on any difficulty.

Complete Longwhistle Station on any difficulty.

Complete Iron Icon Citadel on any difficulty.

Complete Camp Ashfall on any difficulty.

Complete Memorial Park on any difficulty.

Complete 3 different original operations.

Complete all 7 original operations.

Complete an original operation on Hard.

Complete an original operation on Nightmare.

Complete all 7 original operations on Hard.

Complete all 7 original operations on Nightmare.

Raise any hero to permanent level 5.

Raise any hero to permanent level 10.

Raise any hero to permanent level 20.

Raise any hero to permanent level 30.

Own all 4 original heroes.

Own the Mini Tank companion.

Own the Border Collie companion.

Own the Robo-Dog companion.

Own all 3 original companions.

Raise an owned companion to level 3.

Raise an owned companion to level 5.

Raise an owned companion to level 10.

Raise all 4 original heroes to permanent level 10.