Slay the Spire 2: Aeonglass replaces Doormaker as Act 3 boss

Intelligence Summary
- Discover the changes in Slay the Spire 2 with the new boss Aeonglass, its design, and what it means for players.
Briefly
- The Act 3 boss Doormaker has been replaced by Aeonglass in Slay the Spire 2.
- Mega Crit has revealed Aeonglass’s design process, inspired by an hourglass.
- The game is currently in early access and has already had four different Act 3 bosses.
GAME-scanner analysis
The replacement of Doormaker with Aeonglass marks a significant shift in Slay the Spire 2’s gameplay. Mega Crit, the developer, has unveiled a visually striking design that is not only aesthetic, but could also introduce gameplay elements that affect player strategy. Aeonglass’s hourglass-inspired design may symbolically reflect the time pressure players feel while playing. This could lead to new tactics and a fresh experience for both new and returning players.
What does this mean for players?
For players, the introduction of Aeonglass could mean a new challenge in the game. Changes to bosses can affect the flow of combat, and players will need to adapt to the new abilities and strategies Aeonglass brings. This could also increase replay value, as players explore different approaches to defeating this new boss.
Timeline
2026-03-05: Slay the Spire 2 launches in early access and attracts more than 500,000 concurrent players.
2026-07-21: Mega Crit reveals Aeonglass’s design as a replacement for Doormaker.