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