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