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