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.
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.
Use the Axii Sign to force one opponent to kill another. Do this 20 times.
Perform 10 effective counterattacks in a row without getting hit or parrying.
Make an opponent suffer from bleeding, poisoning and burning simultaneously. Do this 10 times.
Complete all witcher contracts.
Complete the contract on Morvudd.
Complete the contract on Therazane.
Finish the game on the "Blood and Broken Bones!" or "Death March!" difficulty levels.
Finish the game on the "Death March!" difficulty level.
Complete the contract on the Woodland Spirit.
Complete all fistfighting quests in Velen, Skellige and Novigrad.
Defeat Olaf, the Skellige champion of unarmed combat.
Kill 10 opponents by knocking them off somewhere high with the Aard Sign.
Bring all possible allies to Kaer Morhen for the battle against the Hunt.
Win all the horse races in the game.
Kill 2 monsters you have a contract on without using Signs, potions, mutagens, oils or bombs.
Have all possible Place of Power bonuses active at the same time.
Finish the game on any difficulty.
Defeat Eredin.
Acquire all the Abilities in one tree.
Complete the contract on Sarasti.
Reach character development level 35.
Visit Tir ná Lia and convince Ge'els to betray Eredin.
Take part in the assassination of King Radovid.
Fill all mutagen slots.
Find Ciri.
Destroy all monster nests in the Velen / Novigrad region, or in Skellige.
Complete the subplot about choosing Skellige's ruler.
Resolve the doppler problem in Novigrad.
Kill 3 opponents in one fight using 3 different methods (swords, bombs, crossbow, Signs, etc.).
Help Yennefer extract information from Skjall's body.
Find and equip all the elements of one set of witcher gear.
Acquire all gwent cards available in the base version of the game.
Discover 100 fast travel points.
Find and free Dandelion.
Defeat Tybalt and win the gwent tournament held at the Passiflora.
Complete the contract on the shrieker.
Find the baron's wife and daughter.
Win a round of gwent using only neutral cards.
Play three hero cards in one round of gwent and win the match.
Destroy 10 monster nests using bombs.
Kill 50 opponents using the environment (e.g. swamp gas, insects or objects).
Collect the formulae for 6 different bomb types.
Complete the subplot involving Keira Metz.
Defeat an opponent in a fistfight without taking any damage.
Read 30 books, journals or other documents.
Learn 12 potion formulae.
Kill at least 5 opponents in under 10 seconds.
Kill 5 foes in a fight without taking damage (except for Toxicity) and without using the Quen Sign.
Find Yennefer of Vengerberg.
Kill 3 opponents with their own arrows.
Collect all available Ofieri armor and horse gear, and at least one Ofieri sword.
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.
Participate in all the activities at the wedding.
Defeat all the fallen knights and loot their campsites.
Slide downhill uninterrupted for at least 10 seconds.
Kill 20 cows.
Buy all the items put on the block at the Borsodis' Auction House.
Kill the prince cursed into a toad.
Be under the influence of seven potions or decoctions at the same time.
Win a round of gwent with a total strength of at least 187.
Be decorated with the Order of Vitis Vinifera.
Serve time in Toussaint.
Be given Aerondight by the Lady of the Lake.
Obtain a flawless victory in all the competitions during the knights' tourney.
Use all available options for developing Corvo Bianco.
Develop a mutation.
Unlock the bonus for equipping all the witcher gear elements from one School.
Find all grandmaster diagrams for each witcher school.
Collect all the cards in the Skellige deck.
Travel to the Duchy of Toussaint.