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.
Reach character development level 35.
Fill all mutagen slots.
Finish the game on the "Death March!" difficulty level.
Take part in the assassination of King Radovid.
Complete all witcher contracts.
Destroy all monster nests in the Velen / Novigrad region, or in Skellige.
Bring all possible allies to Kaer Morhen for the battle against the Hunt.
Attack, counter, cast a Sign and throw a bomb (in any order) in under 4 seconds.
Have all possible Place of Power bonuses active at the same time.
Acquire all the Abilities in one tree.
Make an opponent suffer from bleeding, poisoning and burning simultaneously. Do this 10 times.
Kill 50 human and nonhuman opponents by striking them in the head with a crossbow bolt.
Kill 3 opponents in one fight using 3 different methods (swords, bombs, crossbow, Signs, etc.).
Use the Axii Sign to force one opponent to kill another. Do this 20 times.
Kill 10 opponents by knocking them off somewhere high with the Aard Sign.
Ignite the gas produced by a Dragon's Dream bomb using a burning opponent. Do this 10 times.
Complete the subplot about choosing Skellige's ruler.
Acquire all gwent cards available in the base version of the game.
Complete the contract on the Woodland Spirit.
Defeat Tybalt and win the gwent tournament held at the Passiflora.
Win all the horse races in the game.
Play three hero cards in one round of gwent and win the match.
Perform 10 effective counterattacks in a row without getting hit or parrying.
Kill 50 opponents using the environment (e.g. swamp gas, insects or objects).
Win a round of gwent using only neutral cards.
Complete the subplot involving Keira Metz.
Destroy 10 monster nests using bombs.
Find and equip all the elements of one set of witcher gear.
Resolve the doppler problem in Novigrad.
Kill 2 monsters you have a contract on without using Signs, potions, mutagens, oils or bombs.
Complete the contract on Therazane.
Defeat Olaf, the Skellige champion of unarmed combat.
Complete all fistfighting quests in Velen, Skellige and Novigrad.
Complete the contract on the shrieker.
Complete the contract on Morvudd.
Discover 100 fast travel points.
Complete the contract on Sarasti.
Finish the game on any difficulty.
Finish the game on the "Blood and Broken Bones!" or "Death March!" difficulty levels.
Defeat Eredin.
Visit Tir ná Lia and convince Ge'els to betray Eredin.
Find Ciri.
Kill 5 foes in a fight without taking damage (except for Toxicity) and without using the Quen Sign.
Find and free Dandelion.
Help Yennefer extract information from Skjall's body.
Find the baron's wife and daughter.
Read 30 books, journals or other documents.
Kill at least 5 opponents in under 10 seconds.
Collect the formulae for 6 different bomb types.
Learn 12 potion formulae.
Find Yennefer of Vengerberg.
Defeat an opponent in a fistfight without taking any damage.
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.
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.
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.
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.
Find all grandmaster diagrams for each witcher school.
Unlock the bonus for equipping all the witcher gear elements from one School.
Be given Aerondight by the Lady of the Lake.
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.