Here is the full list of all 19 The Wild Eternal achievements.
Make a lot of oil globs.
Make a huge glob of oil.
Walk for over 100,000 meters total.
Slide safely for over 100 meters total.
Jump horizontally 20 meters or more.
Safely fall for over 100 meters total.
Befriend a lot of rats.
Run for 200 consecutive meters.
Harvest moss from every crystal.
Jump with the pogostags.
Share food with an animal that already likes you.
Read 10 books/notes.
Sit with the bears.
Teleport a lot.
Talk to 5 Fettered Souls.
Gather maximum fruit and moss.
Read 10 Waystones.
Attune your compass to a distant waystone.
Find a way into the cave.