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