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.
Complete all witcher contracts.
Destroy all monster nests in the Velen / Novigrad region, or in Skellige.
Take part in the assassination of King Radovid.
Attack, counter, cast a Sign and throw a bomb (in any order) in under 4 seconds.
Win all the horse races in the game.
Kill 50 human and nonhuman opponents by striking them in the head with a crossbow bolt.
Complete all fistfighting quests in Velen, Skellige and Novigrad.
Defeat Tybalt and win the gwent tournament held at the Passiflora.
Acquire all gwent cards available in the base version of the game.
Play three hero cards in one round of gwent and win the match.
Win a round of gwent using only neutral cards.
Have all possible Place of Power bonuses active at the same time.
Kill 2 monsters you have a contract on without using Signs, potions, mutagens, oils or bombs.
Complete the contract on the Woodland Spirit.
Complete the contract on Morvudd.
Complete the contract on Therazane.
Complete the contract on Sarasti.
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.
Defeat Olaf, the Skellige champion of unarmed combat.
Use the Axii Sign to force one opponent to kill another. Do this 20 times.
Acquire all the Abilities in one tree.
Bring all possible allies to Kaer Morhen for the battle against the Hunt.
Kill 10 opponents by knocking them off somewhere high with the Aard Sign.
Resolve the doppler problem in Novigrad.
Destroy 10 monster nests using bombs.
Perform 10 effective counterattacks in a row without getting hit or parrying.
Read 30 books, journals or other documents.
Discover 100 fast travel points.
Find and equip all the elements of one set of witcher gear.
Finish the game on the "Blood and Broken Bones!" or "Death March!" difficulty levels.
Finish the game on the "Death March!" difficulty level.
Kill 50 opponents using the environment (e.g. swamp gas, insects or objects).
Complete the subplot about choosing Skellige's ruler.
Collect the formulae for 6 different bomb types.
Reach character development level 35.
Fill all mutagen slots.
Finish the game on any difficulty.
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.
Defeat an opponent in a fistfight without taking any damage.
Help Yennefer extract information from Skjall's body.
Find the baron's wife and daughter.
Complete the contract on the shrieker.
Kill 3 opponents in one fight using 3 different methods (swords, bombs, crossbow, Signs, etc.).
Complete the subplot involving Keira Metz.
Learn 12 potion formulae.
Kill at least 5 opponents in under 10 seconds.
Find Yennefer of Vengerberg.
Win a round of gwent with a total strength of at least 187.
Collect all available Ofieri armor and horse gear, and at least one Ofieri sword.
Recreate all of Iris' nightmares in the Painted World.
Participate in all the activities at the wedding.
Buy all the items put on the block at the Borsodis' Auction House.
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.
Be under the influence of seven potions or decoctions at the same time.
Kill 3 opponents with their own arrows.
Kill 20 cows.
Finish the "Hearts of Stone" expansion.
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.
Collect all the cards in the Skellige deck.
Be decorated with the Order of Vitis Vinifera.
Serve time in Toussaint.
Be given Aerondight by the Lady of the Lake.
Use all available options for developing Corvo Bianco.
Develop a mutation.
Find all grandmaster diagrams for each witcher school.
Obtain a flawless victory in all the competitions during the knights' tourney.
Travel to the Duchy of Toussaint.