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.
Perform 10 effective counterattacks in a row without getting hit or parrying.
Complete all witcher contracts.
Attack, counter, cast a Sign and throw a bomb (in any order) in under 4 seconds.
Complete the contract on Therazane.
Destroy all monster nests in the Velen / Novigrad region, or in Skellige.
Acquire all the Abilities in one tree.
Reach character development level 35.
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.
Complete the contract on the Woodland Spirit.
Complete the contract on Morvudd.
Complete the contract on Sarasti.
Win all the horse races in the game.
Complete all fistfighting quests in Velen, Skellige and Novigrad.
Have all possible Place of Power bonuses active at the same time.
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.
Defeat Olaf, the Skellige champion of unarmed combat.
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.
Finish the game on the "Death March!" difficulty level.
Defeat Eredin.
Visit Tir ná Lia and convince Ge'els to betray Eredin.
Fill all mutagen slots.
Acquire all gwent cards available in the base version of the game.
Win a round of gwent using only neutral cards.
Defeat Tybalt and win the gwent tournament held at the Passiflora.
Discover 100 fast travel points.
Kill 2 monsters you have a contract on without using Signs, potions, mutagens, oils or bombs.
Take part in the assassination of King Radovid.
Bring all possible allies to Kaer Morhen for the battle against the Hunt.
Complete the subplot about choosing Skellige's ruler.
Find Ciri.
Help Yennefer extract information from Skjall's body.
Find and free Dandelion.
Play three hero cards in one round of gwent and win the match.
Destroy 10 monster nests using bombs.
Kill 50 opponents using the environment (e.g. swamp gas, insects or objects).
Resolve the doppler problem in Novigrad.
Kill at least 5 opponents in under 10 seconds.
Find the baron's wife and daughter.
Collect the formulae for 6 different bomb types.
Complete the contract on the shrieker.
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.
Complete the subplot involving Keira Metz.
Read 30 books, journals or other documents.
Find Yennefer of Vengerberg.
Learn 12 potion formulae.
Kill 5 foes in a fight without taking damage (except for Toxicity) and without using the Quen Sign.
Defeat all the fallen knights and loot their campsites.
Win a round of gwent with a total strength of at least 187.
Slide downhill uninterrupted for at least 10 seconds.
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.
Kill 3 opponents with their own arrows.
Provoke all Iris von Everec's Nightmares into fighting you at the same time and defeat them.
Finish the "Hearts of Stone" expansion.
Recreate all of Iris' nightmares in the Painted World.
Kill 20 cows.
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.
Be given Aerondight by the Lady of the Lake.
Use all available options for developing Corvo Bianco.
Find all grandmaster diagrams for each witcher school.
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.
Develop a mutation.
Collect all the cards in the Skellige deck.
Obtain a flawless victory in all the competitions during the knights' tourney.
Travel to the Duchy of Toussaint.