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