Here is the full list of all 31 RiME achievements worth 1,000 gamerscore. It takes around 8-10 hours to unlock all of the achievements on Xbox One.
Try to wake up the lost Sentinel.
Pay it forward.
Break the five strange statues.
Move undetected amongst the shades.
Don't smash the eggs.
Complete the labyrinth without making a sound.
Leave denial behind.
Witness the resting place of the once mighty.
Collect all the outfits.
Find a nice resting place.
Try to undo a mistake.
Reunite the family.
Use only one bubble in the underwater cave.
Reassemble all the emblems.
Break lots of jars.
Lit many lights.
Complete the lost lullaby.
Hit your lowest point.
Turning your back to the truth and persevering will lead you nowhere.
Be faster than the Sentinels.
The higher, the funnier!
Reunite with the white shade.
Throw something as far as you can.
Bring light to the labyrinth of darkness.
Peek through all the keyholes.
Accept things as they are.
Collect all the toys.
From victim to victor.
Find the shark.
Respect the past.
The other way was safer.