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