Here is the full list of all 35 SCP: Secret Laboratory achievements.
Successfully escape from the Pocket Dimension.
Successfully re-contain SCP-106
Die inside the pocket dimension.
Die within the first minute of the game.
Kill yourself with a grenade.
Play the Halloween version of the game.
Survive a successful Alpha Warhead Detonation.
Let SCP-173 snap your neck.
Escape as D-Class personnel.
Pick up an O5-Keycard.
Die from a Tesla Gate burst.
Respawn as Chaos Insurgency.
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.
As a Scientist, successfully upgrade your keycard alongside any amount of Class-D.
Escape as a Scientist.
Broadcast a 'helpful' message via the Intercom.
Kill 5 enemies in less than 30 seconds.
Disarm a MTF operative
Find any gun as a Class-D.
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.
Die from a fall.
Kill an SCP with the Micro HID.
Play the Christmas version of the game.
Escape the facility in 3 minutes or under.
Escape while under the effects of SCP-207.
Use SCP-500 when you're about to die.
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.