Here is the full list of all 78 Hunt: The Unknown Quarry achievements.
Play a game to completion
Play 20 games to completion
Win 30 games
See a random card with Spy
Steal an item with Grab
Deal a guaranteed would with Brawl (Roll a 6)
Spend an energy to do an extra action on your turn
Spend an energy to ignore two or more movement penalties
Spend an energy to change the result of a die roll
Spend an energy to block a card used on you
Recover energy by resting
Use a reaction card
Withdraw a card after rolling the die
Withdraw a card, then immediately roll the same number again
Have 4 or more cards played on you in a single turn, and have all of them be withdrawn
Use every reaction card in the game (across multiple matches)
Use a reaction card to block a wound that would have killed or crippled you
Suffer a wound that you could have blocked with a reaction card
Use an item and have it used against you in the same game
Exceed your hand limit and drop a card
Acquire every time in the game
Use every item in the game
Steal an item and give it back
Steal an item and immediately drop it
Use the effect "spend energy or wound" on a player with no energy.
Make another player pay a movement penalty
Stack the fourth movement penalty onto another player
Search every room (that contains cards) in a single game
Win a game as a hunter
Win 10 games as a hunter
Slay a Golem
Slay a warlock
Slay a Naga
Slay a Gorgon
Slay a Spirit
Slay a Werewolf
Slay a Lich
Slay a Revenant
Slay a Vampire
Slay a Fairy
Kill a monster that no other hunter has wounded
Deal the last wound to a monster that you did not previously wound
Kill a monster while crippled
While you are crippled, wound a monster you know has Resilience by rolling three on the die
Find all 3 monster clues
Wound a rival hunter and reveal that they are crippled
Identify the monster by making them randomly show you a monster card
Identify the monster by making them show a card when they only have two
Identify the monster using a detection item
Identify the monster by proving every other opponent human
Identify the monster when they use a power against you
Identify the monster by killing them
Prove someone is not the monster by seeing three different cards from their hand without them acquiring any new cards
Prove someone is not a particular monster by inflicting enough wounds to kill them if they were
Use every detection item to identify a monster (across multiple matches)
After ruling out at least one monster type, pick up an item that affects all the remaining options (but not all monsters in general)
After the monster reveals a power to you, attack them with the weapon specialized against that power
After finding exactly 2 monster clues, attack with the weapon that damages the 3 remaining options
Steal a weapon from the monster and then use it to kill them
Use a reaction card that blocks the exact monster card used on you
Identify the monster with the Shadow Bead and then wound them with the Rifle or Shotgun
Win a game as any monster
Win 10 games as monsters
Use Bite
Use Wasting
Use Magic
Use Resilience
Use Tireless
Withdraw a monstrous attack card (that the target player has not already seen) after rolling the die
Inflict 3 wounds during the third round (i.e the first turn you're allowed to attack)
Inflict enough wounds to know you've crippled a Hunter, then walk away without making them reveal it
Move exactly 3 spaces away from a hunter that you know is crippled
Win as the monster without ever revealing either of your powers
Win as the monster without receiving wounds
Win as the monster by crippling every hunter single-handed (without the hunters wounding each other)
Win as the monster when the last hunter is crippled by another hunter
Win as the monster without inflicting wounds
Play a game with someone who has this achievement