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