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