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