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