Amateur alchimist

Prepare a first potion.

Weekend handyman

Upgrade a weapon with modules for the first time.

Together forever, and even longer

Finish 15 co-operative quests (local or online).

Herbalist

Pick at least one of every type of plant.

I hope the other kids will be nice to me

Join a public camp for the first time.

Fashion is for clowns

Wear the Jester's hat for the first time.

Sharpshooter

Kill 500 infected with a critical shot.

Serial killer

Kill 1,000 infected humans.

From all sides

Finish Kovac's first challenge while keeping the pylon intact.

United we stand

Finish Kovac's first challenge in co-operative mode (local or online).

Cat burglar

Pick 20 locks.

Butterfly effect

Kill 10 infected with a Bomber explosion.

ZombieQ!

Kill at least 2 infected with one arrow or crossbow bolt.

I thought that only worked in the movies!

Pick a lock for the first time.

Make sure to give it back!

Give an ally an item for the first time.

This outfit really brings out my eyes, don't you think?

Customize your survivor for the first time.

Two birds with one stone!

Kill 2 or more enemies at the same time with a melee weapon.

Welcome to Kovac's!

Enter Kovac's bunker for the first time.

Home Run!

Kill an infected with a charged attack for the first time.

Thanks for helping out, bud!

Finish your first co-operative quest (local or online).