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