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