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