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