Here is the full list of all 63 ATONE: Heart of the Elder Tree achievements.
This is the end.
Battle Buldr.
Sometimes sacrifice is necessary to save the world.
Goodbye little friend.
Buldr and Forsetti come to Yri's aid.
Carry 1250 coins.
Complete all of Isa's puzzles.
Solve Gulli's Puzzle.
Solve the Stumped puzzle.
Score 6500 points against Dallr.
Get a 90% hit rate on at least 15 arena battles.
Get a 90% hit rate against Tanngrisnir in Arena.
Score 6500 points against Odin.
Score more than 10,000 points on any battle.
Get a 90% hit rate on at least 10 arena battles.
Get a 90% hit rate on at least 5 arena battles.
Get a 90% hit rate on any Arena battle.
Drink the Magic Mead.
It's over. You can go home now.
Unlock 13 Battles.
Battle Freya.
Collect all the Magic Mead ingredients.
Battle Taangrisnir.
Solve the Tracked puzzle.
Solve The Unsolvable Puzzle.
Solve the Stumped to Death puzzle.
Solve the grouped puzzle.
Battle Loki.
Battle the Ice King.
Aid Blue Heart in her task.
Battle Skullhorn.
Set Eiryn on her own path.
Obtain Jörm's venom.
Return Eiryn's knife to its rightful owner.
Solve the Who Sits Where? puzzle.
Read 20 Story Nodes or Books.
Answer all of Vèldin's questions correctly.
Battle Hati and Skol.
Solve the Griddled puzzle.
Solve the Stumped Again puzzle.
Obtain Odin's Ring from Jörm.
Find the famous tiny shield
Save Forsetti from her fate.
Battle Heldi.
Solve the Blockad puzzle.
Solve the How Many? puzzle.
Solve the Water Runes puzzle.
Solve the Jumbled Freedom puzzle.
Fight your first Arena battle.
Solve the Spring puzzle.
Battle Viktor.
Solve the Jumbled Divide puzzle.
Battle Jörm.
Battle Old Man Wulf.
Find a small peice of Odin's spear
Solve the Bloodtrack Puzzle.
Solve the Grid puzzle.
Obtain Mayweed from Sven.
Talk Sven from his Blue Vein state.
Battle Sven.
Protect the Elder Tree.
Train with Thyon.
Help Dallr tune his lute.