Here is the full list of all 47 Falsepine achievements.
Discover the Brightmaw
Defeat the Brightmaw
Discover the Bonestag
Defeat the Bonestag
Discover the Wailing Tree
Defeat the Wailing Tree
Discover Omen
Defeat Omen
Discover the Primaeval
Defeat the Primaeval
Fully upgrade the Bank
Purchase every Weapon from the Shop
Drink a Grumbo
Kill the Possessed Dummy
Hunt the elusive Squib
Equip The Judge, The Jury, and The Executioner.
Die in the Tutorial
Die 50 times
Die
Collect all lore on the Brightmoles
Collect all lore on the Plague Beetles
Collect all lore on the Corpse Puppets
Collect all lore on the Afflicted
Reach 100% lore completion
Complete an Easy Bounty
Complete a Medium Bounty
Complete a Hard Bounty
Own every Legendary Weapon
Acquire the Executioner
Acquire the Davy Jones
Acquire the Obituary
Acquire the Offering
Acquire the Rattlesnake
Acquire the Witch Hunter
Acquire the Grave Robber
Acquire the Cutting Words
Acquire the Buzzard
Acquire the Taboo
Acquire the Cave-In
Acquire the Dustman
Acquire the Judge
Acquire the Jury
Find all Brightmaw Lore Journals
Find all Bonestag Lore Journals
FInd all Wailing Tree Lore Journals
Find all Omen Lore Journals
FInd all Primaeval Lore Journals