Kill 100 infected with traps.
Finish Kovac's first challenge while keeping the pylon intact.
Kill 5,000 enemies (of all types).
Finish each of the game's festive quests.
Kill 100 infected with silex-tipped fletched ammunition.
Equip a pet for the first time.
Kill 50 infected during a last stand.
Kill 50 nocturnal infected.
Wear the Jester's hat for the first time.
Prepare a first potion.
Upgrade a weapon with modules for the first time.
Kill at least 2 infected with one arrow or crossbow bolt.
Kill 1,000 infected humans.
Pick at least one of every type of plant.
Kill 500 infected with a critical shot.
Kill 10 infected with a Bomber explosion.
Pick 20 locks.
Customize your survivor for the first time.
Join a public camp for the first time.
Kill 2 or more enemies at the same time with a melee weapon.
Kill an infected with a charged attack for the first time.
Pick a lock for the first time.
Enter Kovac's bunker for the first time.
Successfully complete half of Kovac's challenges while keeping the pylon intact.
Successfully complete all of Kovac's challenges while keeping the pylon intact.
Reach the maximum level with your character.
Kill 10 infected animals of each species.
Successfully complete all of the elite quests.
Kill 100 infected with silver bullets.
Have all Survival skills at the maximum level.
Have all Weapon skills at the maximum level.
Have all Stamina skills at the maximum level.
Have all Special abilities skills at the maximum level.
Have all In Danger skills at maximum level.
Have the camp at maximum level.
Cook every type of recipe.
Prepare every type of potion.
Make every type of armor.
Make every type of weapon.
Finish your first co-operative quest (local or online).
Finish 15 co-operative quests (local or online).
Finish Kovac's first challenge in co-operative mode (local or online).
Help an ally in trouble 30 times.
Give an ally an item for the first time.
Meet every character in the game.
Upgrade 10 weapons with modules.
Finish every quest.
Drink 50 potions.
Hit a car under alarm with a trash can.
