Here is the full list of all 35 SCP: Secret Laboratory achievements.
As a Scientist, successfully upgrade your keycard alongside any amount of Class-D.
Escape the facility in 3 minutes or under.
Kill yourself with a grenade.
Use SCP-500 when you're about to die.
Kill an SCP with the Micro HID.
Escape as a Scientist.
Survive a successful Alpha Warhead Detonation.
Escape as D-Class personnel.
Broadcast a 'helpful' message via the Intercom.
Pick up an O5-Keycard.
Find any gun as a Class-D.
Die from a fall.
Let SCP-173 snap your neck.
Successfully escape from the Pocket Dimension.
Die inside the pocket dimension.
Respawn as Chaos Insurgency.
Die from a Tesla Gate burst.
Die within the first minute of the game.
Respawn as Nine-Tailed Fox.
Cure 10 people in a single game.
Die while entering a rage as SCP-096.
As Class-D, kill a Scientist holding a keycard.
Kill 5 enemies in less than 30 seconds.
Successfully re-contain SCP-106
Disarm a MTF operative
Kill 50 D-Class as a Scientist.
Cancel the Alpha Warhead detonation within the last 15 seconds of the countdown.
Kill an SCP as a Scientist.
Play the Halloween version of the game.
Play the Christmas version of the game.
Escape while under the effects of SCP-207.
Use adrenaline to survive a hit that would otherwise kill you.
As an SCP, kill someone who's charging or firing the MicroHID.
Try to recharge the MicroHID.
Liberate two or more SCP objects from the facility while escaping as a Class-D.