Here is the full list of all 41 The Serpent Rogue achievements.
Shoot down 5 flying Chickens
Disperse 3 Ghouls using the Undertaker
Block incoming damage with a Broom 50 times
Research all Ingredients in your Journal
Open 25 Locks using a Picklock
Spend 500 Food to speed up time while sleeping
Resurrect 5 followers with the Undertaker
Bind 10 Creatures from the Mavka
Remove Corruption from 12 Creatures
Tame a Valravn
Enhance 10 Weapons in the Smeltery
Play with 5 different Creatures
Create 5 Creatures
Using water, extinguish fire from yourself 3 times
Steal 8 Items from Creatures
Brew 30 Unique Potions
Discover 15 Creatures in the Journal
Lay 5 Eggs
Eat raw food 5 times
Cook 20 different dishes
Apply the "Stinky" status effect to yourself or an NPC 3 times
Gather 10 Followers in the Camp location
Bind 15 people from the Harbormaster
Brew 10 Sloppy Potions
Brew 15 Unique Potions
Discover a Dobhar Chu
Complete a Fallen Warrior Quest
Open 3 Moonstone Chests
Discover the Gorgon's Location
Light up an extinguished Torch
Remove Poison from yourself or your followers 10 times
Collect 500 Gold Coins
Buy 5 Items From the Merchant House
Catch 15 Butterflies
Destroy 10 Soul Vessels
Find the Fighting Pit
Catch 25 Fish in Water Banks
Find 25 Worms in Stumps
Craft a Sanctum Vessel
"Receive 100 total damage from enemies "
Discover the location of the Undertaker