Here is the full list of all 31 RiME achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
Bring light to the labyrinth of darkness.
Find a nice resting place.
Don't smash the eggs.
Try to wake up the lost Sentinel.
Throw something as far as you can.
Collect all the toys.
Collect all the outfits.
Complete the lost lullaby.
Peek through all the keyholes.
Reassemble all the emblems.
Reunite with the white shade.
Leave your comfort zone.
From victim to victor.
Pay it forward.
Hit your lowest point.
Accept things as they are.
Respect the past.
Break the five strange statues.
Break lots of jars.
Lit many lights.
Reunite the family.
The higher, the funnier!
Complete the labyrinth without making a sound.
Find the shark.
Use only one bubble in the underwater cave.
Try to undo a mistake.
Move undetected amongst the shades.
Witness the resting place of the once mighty.
The other way was safer.
Turning your back to the truth and persevering will lead you nowhere.
Be faster than the Sentinels.