From the Architect to Ascension 20, here’s everything that unlocks after beating Act 3 and how to maximize your runs.
You finally toppled the Act 3 boss of Glory in Slay the Spire 2 — and a cutscene introduces a mysterious figure who shrugs off your damage and kills you on the spot. It feels jarring, but that death kicks off a sprawling meta-progression layer.
Beyond that final fight, the real climb starts: new game modes, characters, Epochs, Ascension levels, and completionist goals that reshape every future run.
In this guide we’ll cover everything that unlocks after the credits roll, from the Architect encounter to grinding out Ascension 20 across all characters.
The Architect and what happens immediately after beating Act 3
After beating the Glory boss, a cutscene shows The Architect. This figure shrugs off all damage, instantly kills your character, and converts your total run Score into damage on a global counter.
You then return to Neow and start a new run. The aggregated damage feeds a community-wide milestone that will unlock future content as the early access expands.
Unlocking Daily Climb and Custom Mode
To unlock Daily Climb, you must finish a run (win or lose) and then beat Act 3 with every character at least once. This mode sets a fixed Spire layout with three random modifiers and a global leaderboard.
Custom Mode unlocks after beating Glory three times total. It lets you toggle modifiers like Draft, Vintage (enemies drop relics instead of cards), and Diverse (cards not restricted by character). You can also enter Seeds for preset layouts.
Progressing the Timeline and Epochs
The Timeline is a checklist of Epochs — discrete story chapters that unlock when you hit specific milestones such as accumulating Score, defeating Elites and Bosses, or clearing Acts with certain characters.
Rewards from unlocked Epochs include:
– New characters: finishing a run with The Ironclad unlocks The Silent.
– New Ancients: encountering all other Ancients at least once unlocks Darv.
– New relics and cards: the Scribbles Epoch grants Reptile Trinket and Intimidating Helmet.
– Alternate Acts: accumulating Score can unlock the Underdocks, an alternate version of Act 1 with different enemies and events.
Ascension Levels and Multiplayer Ascension
Once you defeat an Act 3 Boss with a specific character, you unlock Ascension 1 for that character. Each Ascension level adds a stacking modifier — Ascension 2 (Weary Traveler) makes Ancients heal only 80% of missing HP, while Ascension 10 (Double Boss) forces two consecutive Bosses at the end of Act 3.
In single-player, Ascension progress is tracked independently for The Ironclad, The Silent, The Regent, The Necrobinder, and The Defect. Multiplayer has its own separate Ascension tracker; winning a Co-Op run unlocks the next level for all characters simultaneously.
Completionism: Compendium, events, and badges
For players aiming at 100%, several layers demand attention:
– Card Library and Relic Collection: complete runs with every character to unlock and discover all entries.
– Event Log: trigger all 50+ unique events by visiting Unknown domains and recording their outcomes.
– Badges: performance-based awards like Elite Slayer (kill 9 or more Elites) and Glutton (increase Max HP by 50 or more).
– Mastering builds: experiment with specialized archetypes such as the Status Card build for The Defect, the Grand Finale infinite loop for The Silent, or high Strength stacking for The Ironclad.
From the Architect’s cold shoulder to hitting Ascension 20 with every character, Slay the Spire 2 piles on endless goals. For deep dives on character unlocks, optimal builds, and every hidden event, the full guide hub lives at Solo Jugadores.
