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