Here is the full list of all 37 Chained Echoes achievements.
Master all Sky Armor weapons with one Sky Armor.
Complete the Reward Board.
Flee 42 times.
Learn all skills with all characters.
Beat the game.
Complete the bestiary.
Get all ultimate weapons.
Buy all Deals.
Learn all skills for Tomke.
Read all lore books.
Slay the ultimate boss.
Defeat all Unique Monsters.
Finish all side quests.
Get a Reward Board chain of over 120.
Find all recruits.
Finish act III.
Find 12 Class Emblems.
Get a Reward Board chain of over 80.
Finish act II.
Sell 1 piece of crap.
Find the Crab Village.
Master a Sky Armor weapon.
Win 200 battles.
Find 6 Class Emblems.
Find the platypus gang’s treasure.
Get a Reward Board chain of over 40.
Master a Class Emblem skill.
Finish act I.
Reclaim your Sky Armor.
Join the Adventurer’s Guild.
Win 100 battles.
Get a Reward Board chain of over 20.
Win 50 battles.
Disturb 60 birds.
Get a Reward Board chain of over 5.
Find a Class Emblem.
Finish the prologue.