Here is the full list of all 27 Parcel achievements.
Complete all Special Place levels.
Complete all the levels in the game.
Do everything else and ascend to greatness.
Complete all Basement levels.
Collect all Dataspheres written by Special Place users.
Collect all Dataspheres.
Complete all Common Place levels.
Collect all Dataspheres originating from Spectacle accounts.
Complete all Processor levels.
Find the hidden easter egg.
Unlock Shade.
Spare what is to be spared and complete marked levels.
Feel good for thinking you've saved humanity.
Play through the game without the fifth wheel.
Destroy what can be destroyed and complete marked levels.
Unlock Clobber.
Complete all Containment levels.
Unlock Porter.
Complete all Greenhouse levels.
Complete 10 levels created by other users.
Unlock Hackman.
Create and share a level for others to play.
Hackman did his best to prevent you from being able to do this. Do it anyway.
Complete all Factory levels.
Unlock Magna.
Complete all Ventilation levels.
Find the missing shipment.