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