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.
Find and equip all the elements of one set of witcher gear.
Finish the game on the "Death March!" difficulty level.
Acquire all gwent cards available in the base version of the game.
Complete all witcher contracts.
Kill 10 opponents by knocking them off somewhere high with the Aard Sign.
Complete the contract on Morvudd.
Win all the horse races in the game.
Attack, counter, cast a Sign and throw a bomb (in any order) in under 4 seconds.
Ignite the gas produced by a Dragon's Dream bomb using a burning opponent. Do this 10 times.
Kill 50 human and nonhuman opponents by striking them in the head with a crossbow bolt.
Complete the contract on the Woodland Spirit.
Make an opponent suffer from bleeding, poisoning and burning simultaneously. Do this 10 times.
Use the Axii Sign to force one opponent to kill another. Do this 20 times.
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.
Destroy all monster nests in the Velen / Novigrad region, or in Skellige.
Kill 2 monsters you have a contract on without using Signs, potions, mutagens, oils or bombs.
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.
Defeat Eredin.
Complete the contract on Therazane.
Complete all fistfighting quests in Velen, Skellige and Novigrad.
Defeat Olaf, the Skellige champion of unarmed combat.
Take part in the assassination of King Radovid.
Visit Tir ná Lia and convince Ge'els to betray Eredin.
Fill all mutagen slots.
Find Ciri.
Discover 100 fast travel points.
Complete the contract on Sarasti.
Defeat Tybalt and win the gwent tournament held at the Passiflora.
Bring all possible allies to Kaer Morhen for the battle against the Hunt.
Complete the subplot about choosing Skellige's ruler.
Win a round of gwent using only neutral cards.
Help Yennefer extract information from Skjall's body.
Play three hero cards in one round of gwent and win the match.
Find and free Dandelion.
Kill 50 opponents using the environment (e.g. swamp gas, insects or objects).
Collect the formulae for 6 different bomb types.
Destroy 10 monster nests using bombs.
Resolve the doppler problem in Novigrad.
Defeat an opponent in a fistfight without taking any damage.
Find the baron's wife and daughter.
Complete the subplot involving Keira Metz.
Complete the contract on the shrieker.
Read 30 books, journals or other documents.
Learn 12 potion formulae.
Kill 3 opponents in one fight using 3 different methods (swords, bombs, crossbow, Signs, etc.).
Kill 5 foes in a fight without taking damage (except for Toxicity) and without using the Quen Sign.
Find Yennefer of Vengerberg.
Kill at least 5 opponents in under 10 seconds.
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.
Win a round of gwent with a total strength of at least 187.
Kill 20 cows.
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.
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.
Participate in all the activities at the wedding.
Kill the prince cursed into a toad.
Slide downhill uninterrupted for at least 10 seconds.
Unlock the bonus for equipping all the witcher gear elements from one School.
Serve time in Toussaint.
Be decorated with the Order of Vitis Vinifera.
Be given Aerondight by the Lady of the Lake.
Find all grandmaster diagrams for each witcher school.
Collect all the cards in the Skellige deck.
Develop a mutation.
Obtain a flawless victory in all the competitions during the knights' tourney.
Use all available options for developing Corvo Bianco.
Travel to the Duchy of Toussaint.