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