Win as the Detective.

Win as the Researcher and survive the round.

Win as the Witness and survive the round.

Pick up a dead human's weapon.

Craft your first piece of equipment.

Complete your first scan.

Get a positive scan result on a human who is actually infected.

Scan 100 different humans.

Detect an infection using an improvised detector.

Two operators scan the same infected host less than 10 seconds apart.

Scan a healthy human, then scan them again after they become infected.

Detect the parasite in two different hosts.

Receive a false positive while healthy, then survive the round with a human victory.

As the Researcher, detect an infection, then kill the exposed parasite yourself.

Scan every other human present at the start of the round, with at least three other humans.

Successfully extract the parasite from yourself while infected.

As the Witness, successfully perform an extraction using a detector you crafted.

Successfully complete an extraction that starts and ends during a power outage.

Extract a parasite that another human kills within 10 seconds, with the patient still alive.

Interrupt active host control with an extraction, complete the extraction, and win with the patient still alive.

Kill the parasite from at least 20 meters away.

Kill the parasite while it is trying to enter a human.

As the Detective, kill the parasite with your first shot of the round.

Kill the parasite while crouching, from less than 3 meters away.

Restore the power, then kill the parasite within 5 seconds.

Possess every human present at the start of the round, with at least three humans.

Take control three times without switching hosts between takeovers.

Possess a human within 10 seconds of a negative scan performed while they were healthy.

After a forced extraction, possess another human within 15 seconds of being expelled.

Kill a human using the weapon of a host you control.

Make your host fire their weapon, then end control with a successful resynchronization, without being forcibly ejected.

Cut the power using the body of a host you control.

Voluntarily leave a host, possess another, then return to the first, in less than 10 seconds.

Make your host perform an emote while you are controlling them.

Win after possessing at least three humans, without spending more than 20 consecutive seconds in any one host.

Collect 15 building blocks in a single play session.

Craft a piece of equipment during the first minute of the round.

Have another human pick up a piece of equipment you crafted less than 15 seconds earlier.

Have another human successfully perform an extraction using an improvised detector you crafted and passed on.

Pick up a dead Researcher's extractor, then use it to save an infected human.

As the Witness, complete a scan, then kill the parasite in the same round.

Kill the parasite with your own improvised weapon within 20 seconds of crafting it.

Kill the parasite during a power outage.

As the parasite, cause a power outage, then successfully possess a human within 10 seconds.

Two humans perform the Thinking emote at the same time while less than 3 meters apart. Awarded to both.

Perform the Thanks emote within 10 seconds of picking up an item given to you by another human.

Within 15 seconds of the parasite's expulsion, salute the player who extracted it from you.

As the parasite, blow a kiss to a human from a controlled host, then possess the recipient within 20 seconds.

Kill the parasite while you are the last human alive.

Kill the parasite after at least one possession, with all starting humans still alive and at least three humans present at the start.

As the Witness, craft both a weapon and a detector, detect an infection, successfully perform an extraction, and kill the parasite with that weapon, without killing any human.