Here is the full list of all 83 HELLCARD achievements.
Reach floor 19 in Endless Mode
Reach floor 13 in Endless Mode
Defeat Cook
Win a run without companions.
Die due to rotten damage.
Win a battle with Antipope without ever reaching card limit.
Unlock all cards and artifacts for 3 classes.
Wear 10 different outfits in battles.
Have 128 block.
Unlock all cards and artifacts for 2 classes.
Take no damage in a turn in which 3 heroes are supposed to die.
Win 15 runs
Win a run with Torment 10.
During a battle have more status cards in your deck than all other types combined.
Win a match when all other players had fallen.
Start a battle with 1HP and survive.
Wear 5 different outfits in battles.
Win a run taking all rightside paths on the map.
Win a run under 30 minutes
Unlock all cards and artifacts for 1 class.
Win 5 runs
Have a monster frozen and stunned at the same time.
Defeat all minibosses
Win a run under 60 minutes
Win a run under 45 minutes
Win run with Torment 1.
Defeat Archdemon
Die alongside with all the monsters.
Win a match dead.
Win a battle in the first turn
Deal 200 damage in one turn as a team.
Gamble away the last gem.
Win a run
Defeat Antipope
Have all of your cards in hand cost 0 mana (at least 5 cards).
Deal 100 damage in one turn as a team.
Deal 50 damage in one turn as a team.
Have 1k block.
Have 32k block.
Wear 15 different outfits in battles.
Have all of your cards in hand cost at least 3 mana (at least 5 cards).
Build deck consisting only of Attack cards.
Build deck consisting only of Skill cards.
Build deck consisting only of Influence cards.
Start a battle with 1 HP and exit it with full health.
Win a run without getting any gemstones.
Win a run without losing any HP.
Win a run without taking any artifacts.
Win a run without adding or removing any cards to your deck.
Play a Starter card using a Stamina Burst.
Replay 5 cards using Stamina Burst in a single turn.
Win final boss fight during first turn.
Win a battle having 2 or less cards in deck.
In a single adventure screen upgrade a Starter Card to a Legendary.
Win a run without getting any block.
Kill an enemy while having at least 10 Weak influence stacked.
Have a team member play at least 15 cards during one turn and deal no damage.
Have 2 team members play at least 15 cards each during one turn and deal no damage.
Have 3 team members play at least 15 cards each during one turn and deal no damage.
Reach 50 max HP.
Win a run with the Pacifist Torment modifier without killing any monster.
Win a run with every player having 1HP at the end.
At any point, have at least 35 cards in your deck.
Have only legendary cards in your deck.
Die to an archer while playing a Warrior
Win a run with Torment 20.
Reach floor 25 in Endless Mode