Boss encounters

A complete compendium of Bosses in Slay the Spire 2, organized by Acts. During the initial days of Early Access, please take everything with an extra grain of salt.

Other encounter types

Bosses are only one slice of the climb—events, elites, and hallway fights all feed your deck before you reach these gates.

Events

Mystery nodes: risk, reward, or both. See Acts for how the climb is structured.

Elites

Gatekeepers that tax your deck before bosses. Route planning starts on Acts.

Monsters

Hallway fights that shape your path. Full per-node tables will expand over time.

Overview

Each act pairs regions with a boss pool. Multi-image rows mark multi-phase fights (e.g. Lagavulin asleep vs awake, or Waterfall Giant / Test Subject sequences).