Milestones for clearing runs, toppling bosses, and climbing Ascension, 46 in total
Data from build 10180494, updated
Slay the Spire tracks 46 achievements in the background, no bonuses attached, nothing gated behind them. Clear a single run with Ironclad, Silent, Defect, and Watcher and that's four banked before you've tried for anything specific. Other achievements ask more: topple a named boss, survive a run at a higher Ascension level, or pull off some one-off feat the game happens to notice. 15 stay hidden until you earn them, mostly ones that would spoil a secret boss or the game's true final fight. None of it changes a run in progress, no unlocked cards, no stat boosts. Treat the list like any other Steam achievement list, bragging rights for finishing the job, not a build guide.
Showing 46 of 46
Have 9 or more Energy at once.
Win a run as the Watcher. Also granted with Amethyst+.
Defeat the Heart in Act 4 as the Watcher. Also unlocks Amethyst.
Win a run with a character, which unlocks Ascension mode for them.
Win a run at Ascension 10, outside a Trial. Granted retroactively to a profile that has already unlocked Ascension 11.
Win a run at Ascension 20, outside a Trial, or reach Act 4 at Ascension 20 and die there. Granted retroactively to a profile that has already beaten Ascension 20.
Reach 999 Block, the Block cap.
As the Silent, stack 99 or more Poison on a single enemy.
Win a combat without playing an Attack. Escaping with Smoke Bomb does not count.
Defeat the final boss with no Uncommon or Rare cards in your deck. Not in Endless mode.
Unlock the other 45 achievements.
Defeat the final boss with 5 or fewer cards in your deck. Not in Endless mode.
Defeat the final boss of a Daily Climb. The one achievement a Daily Climb can unlock.
Channel 9 Plasma orbs in a single turn.
Deal the killing blow to Donu with Feed.
Defeat a boss without taking damage in that fight. HP you lose to your own cards and relics does not count.
As the Silent, kill 3 enemies with Poison damage in a single combat.
Have 10 or more buffs on yourself at once.
During combat on floor 4 or later, have 3 or fewer cards across your hand, draw pile and discard pile combined.
Win a combat with exactly 1 HP left.
Defeat the final boss with 1200 seconds (20 minutes) or less on the run timer. Not in Endless mode.
Defeat the Slime Boss, including every slime it splits into.
Hold Ruby+, Emerald+ and Sapphire+. The Watcher's Amethyst+ is not needed.
Have 20 or more cards in your exhaust pile in a single combat.
Defeat the final boss with exactly 1 relic. Not in Endless mode.
Defeat a boss on turn 1 of the fight (for the Awakened One, its second form).