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