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