Here is the full list of all 43 The Pathless achievements.
Collect all achievements.
Reach the highest updraft above the mountain.
Witness the extended ending.
Slide 400 meters down a steep slope.
Chain 10 skill shots in a row.
Collect the gift from every spirit.
Obtain the Gift of the Bear Spirit.
Collect all the lightstones.
Collect all the Bear lightstones.
Find all the lore of the Pathfinder's story.
Obtain the Gift of the Snake Spirit.
Collect all the Snake lightstones.
Complete the puzzle at the Bathhouse.
Get 10 flaps.
Obtain the Gift of the Lizard Spirit.
Collect all the Lizard lightstones.
Reach the old fortress.
Obtain the Gift of the Elk Spirit.
Collect all the Elk lightstones.
Discover 45 lanterns.
Run with 6 animals.
Drift 300 meters down a river.
Discover 30 lanterns.
Reach the observatory.
Fly for over a minute without touching an updraft.
Complete the game and view the credits.
Cleanse the Mountain Tundra.
Survive 3 storm encounters unscathed.
Discover 45 lore messages.
Cleanse the Great Plains.
Shoot 1,000 talismans.
Fall 150 meters without gliding and land hard.
Discover 30 lore messages.
Discover 15 lanterns.
Pet the eagle 4 times.
Cleanse the Redwood Steppe.
Complete the puzzle at the Textile Workshop.
Bounce an arrow off two mirrors.
Shoot 5 talismans while airborne before touching the ground.
Cleanse the Forest Plateau.
Discover 15 lore messages.
Complete the puzzle at the Monastery.
Reach the mainland.