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