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