I was looking into this topic and saw no Witcher achievement list. Thought might be useful for the hunters who want to get everything :~) Also will come back with an update for expansions. Enjoy this one for now. The Witcher 3: Wild Hunt 15G Lilac and Gooseberries Find Yennefer of Vengerberg 15G A Friend in Need Find and free Dandelion 15G Necromancer Help Yennefer extract information from Skjall’s body 15G Family Counselor Find the baron’s wife and daughter 15G Something More Find Ciri 30G Xenonaut Visit Tir ná Lia and convince Ge’els to betray Eredin 15G The King is Dead Defeat Eredin 30G Passed the Trial Finish the game on any difficulty 65G Ran the Gauntlet Finish the game on the “Blood and Broken Bones!” or “Death March!” difficulty levels 15G Walked the Path Finish the game on the “Death March!” difficulty level 15G Geralt: The Professional Complete all witcher contracts 15G Kingmaker Complete the subplot about choosing Skellige’s ruler 15G Assasin of Kings Take part in the assassination of King Radovid 15G Friends with benefits Complete the subplot involving Keira Metz 15G Full Crew Bring all possible allies to Kaer Morhen for the battle against the Hunt (careful this requires to complete all the sub-quests given after leaving Kaer Morhen in search for allies) 15G Dendrologist Acquire all the Abilities in one tree 15G The Enemy of My Enemy Use the Axii Sign to force one opponent to kill another. Do this 20 times. 15G Humpty Dumpty Kill 10 opponents by knocking them off somewhere high with the Aard Sign. 15G Environmentally Unfriendly Kill 50 opponents using the environment (e.g. swamp gas, insects or objects). 15G Kaer Morhen Trained Perform 10 effective counterattacks in a row without getting hit or parrying. 15G Can't Touch This! Kill 5 foes in a fight without taking damage (except for Toxicity) and without using the Quen Sign. 30G That is The Evilest Thing... Ignite the gas produced by a Dragon’s Dream bomb using a burning opponent. Do this 10 times. 30G Butcher of Blaviken Kill at least 5 opponents in under 10 seconds. 15G Triple Threat Kill 3 opponents in one fight using 3 different methods (swords, bombs, crossbow, Signs etc.). 30G Brawler Defeat Olaf, the Skellige champion of unarmed combat. 15G Overkill Make an opponent suffer from bleeding, poisoning and burning simultaneously. Do this 10 times. 15G Master Marksman Kill 50 human and nonhuman opponents by striking them in the head with a crossbow bolt. 15G What Was That? Attack, counter, cast a Sign and throw a bomb (in any order) in under 4 seconds. 30G Globetrotter Discover 100 fast travel points. 15G Pest Control Destroy all monster nests in the Velen/Novigrad region, or in Skellige. (For Velen/Novigrad this includes the right side of the map too) 15G Card Collector Acquire all gwent cards available in the base version of the game.(You can buy a book from a merchant in novigrad near passiflora besides a barber. That book helps you see what cards you are missing) 15G Gwent Master Defeat Tybalt and win the gwent tournament held at the Passiflora. 15G Let’s Cook! Learn 12 potion formulae. 15G Bombardier Collect the formulae for 6 different bomb types 30G Bookworm Read 30 books, journals or other documents. 15G Armed and Dangerous Find and equip all the elements of one set of witcher gear.(including crossbow guys, yes there is a crossbow for usrine and other gears too) 15G Power Overwhelming Have all possible Place of Power bonuses active at the same time. 15G Brawl Master Complete all fist fighting quests in Velen, Skellige and Novigrad. 15G Fast and Furious Win all the horse races in the game. 15G Munchkin Reach character development level 35. 15G Fire in the Hole Destroy 10 monster nests using bombs. 15G Fist in the South Star Defeat an opponent in a fistfight without taking any damage. 15G Geralt and Friends Win a round of gwent using only neutral cards. 15G All In Play three hero cards in one round of gwent and win the match. 15G Shrieker Complete the contract on the shrieker. 15G Fearless Vampire Slayer Complete the contract on Sarasti 15G Woodland Spirit Complete the contract on the Woodland Spirit 15G Friend or Foe? Complete the contract on Morvudd. 15G Ashes to Ashes Complete the contract on Therzane 30G The Doppler Effect Resolve the doppler problem in Novigrad. 15G Even Odds Kill 2 monsters you have a contract on without using Signs,potions, mutagens, oils or bombs. 15G Mutant Find all mutagen slots.