Here is the full list of all 17 Noclipped achievements.
Stare at the floor for 20 minutes
Get killed by the rare OwO smiler
Find a computer and click on the keyboard 50 times or more
Kill 25 entities
Kill 50 entities
Kill 100 entities
Craft your first weapon
Parry an entity attack for the first time
Reach 0 sanity
Pick up firesalt
Explore all of the levels available in chapter 1
Die for the first time
Kill 10 entities
Kill 1 entity
Play Sandbox more at least once
Pick up carpet mushrooms
No-clip out of reality and enter level 0