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