Full list of all 17 Unmechanical: Extended achievements worth 1,000 gamerscore. It takes around 3-4 hours to unlock all of the achievements on Xbox One.
Some things are just way too heavy.
Pass the adjustable pumps without adjusting the pumps.
Save yourself at the end of Extended.
Sacrifice yourself at the end of Extended.
Balance an object on your head for 10 seconds.
Make 4 loops with the helicopter in succession.
Finish the game by escaping.
Finish game without using hints.
Become a new janitor.
A way out?
It lives!
Throw a piece of coal into the oven without the piece touching anything, flying for 3 seconds.
Get hit in the head with a lavarock 5 times without using the tractor beam.
Deeper and deeper.
Form a pentagram with the laser reflectors.
No way out, but forward.
At the beginning of the game, find a way to submerge under water.