Full list of all 78 The Witcher 3: Wild Hunt achievements. It takes around 100-120 hours to unlock all of the achievements in the base game on Windows.
The base game contains 52 achievements, and there are 3 DLC packs containing 26 achievements.
Make an opponent suffer from bleeding, poisoning and burning simultaneously. Do this 10 times.
Acquire all the Abilities in one tree.
Kill 50 human and nonhuman opponents by striking them in the head with a crossbow bolt.
Complete all witcher contracts.
Take part in the assassination of King Radovid.
Find and equip all the elements of one set of witcher gear.
Reach character development level 35.
Complete the subplot about choosing Skellige's ruler.
Bring all possible allies to Kaer Morhen for the battle against the Hunt.
Visit Tir ná Lia and convince Ge'els to betray Eredin.
Find Ciri.
Fill all mutagen slots.
Complete the contract on Morvudd.
Destroy all monster nests in the Velen / Novigrad region, or in Skellige.
Complete the contract on Therazane.
Complete the contract on Sarasti.
Ignite the gas produced by a Dragon's Dream bomb using a burning opponent. Do this 10 times.
Attack, counter, cast a Sign and throw a bomb (in any order) in under 4 seconds.
Discover 100 fast travel points.
Help Yennefer extract information from Skjall's body.
Resolve the doppler problem in Novigrad.
Win all the horse races in the game.
Complete all fistfighting quests in Velen, Skellige and Novigrad.
Kill 50 opponents using the environment (e.g. swamp gas, insects or objects).
Defeat Olaf, the Skellige champion of unarmed combat.
Complete the contract on the Woodland Spirit.
Kill 10 opponents by knocking them off somewhere high with the Aard Sign.
Have all possible Place of Power bonuses active at the same time.
Perform 10 effective counterattacks in a row without getting hit or parrying.
Play three hero cards in one round of gwent and win the match.
Defeat Tybalt and win the gwent tournament held at the Passiflora.
Find and free Dandelion.
Use the Axii Sign to force one opponent to kill another. Do this 20 times.
Find the baron's wife and daughter.
Win a round of gwent using only neutral cards.
Kill 3 opponents in one fight using 3 different methods (swords, bombs, crossbow, Signs, etc.).
Complete the contract on the shrieker.
Kill 2 monsters you have a contract on without using Signs, potions, mutagens, oils or bombs.
Destroy 10 monster nests using bombs.
Collect the formulae for 6 different bomb types.
Defeat an opponent in a fistfight without taking any damage.
Complete the subplot involving Keira Metz.
Read 30 books, journals or other documents.
Learn 12 potion formulae.
Find Yennefer of Vengerberg.
Kill at least 5 opponents in under 10 seconds.
Kill 5 foes in a fight without taking damage (except for Toxicity) and without using the Quen Sign.
Defeat Eredin.
Finish the game on any difficulty.
Finish the game on the "Blood and Broken Bones!" or "Death March!" difficulty levels.
Finish the game on the "Death March!" difficulty level.
Acquire all gwent cards available in the base version of the game.
Collect all available Ofieri armor and horse gear, and at least one Ofieri sword.
Be under the influence of seven potions or decoctions at the same time.
Kill 3 opponents with their own arrows.
Finish the "Hearts of Stone" expansion.
Provoke all Iris von Everec's Nightmares into fighting you at the same time and defeat them.
Recreate all of Iris' nightmares in the Painted World.
Kill 20 cows.
Buy all the items put on the block at the Borsodis' Auction House.
Defeat all the fallen knights and loot their campsites.
Participate in all the activities at the wedding.
Slide downhill uninterrupted for at least 10 seconds.
Kill the prince cursed into a toad.
Win a round of gwent with a total strength of at least 187.
Be decorated with the Order of Vitis Vinifera.
Serve time in Toussaint.
Collect all the cards in the Skellige deck.
Find all grandmaster diagrams for each witcher school.
Be given Aerondight by the Lady of the Lake.
Unlock the bonus for equipping all the witcher gear elements from one School.
Develop a mutation.
Obtain a flawless victory in all the competitions during the knights' tourney.
Use all available options for developing Corvo Bianco.
Travel to the Duchy of Toussaint.