Bosses are major encounters, with some connected to the story and others offered as optional challenges.
Story encounters
- The Sculk Terror — the central battle during Veilwood's Stalker.
- Mega Sculk Terror — a harder replayable version.
- King of Oceanspire — confront the fallen King during Nora's investigation.
- Ignevar — appears during Everdawn's story.
- The Hollowed Knight (Quest) — the weakened, one-time story encounter.
- The Hollowed Knight — the full replayable challenge.
Other encounters
- Backrooms Shogun — a repeatable optional boss.
- Skeleton King — former wave opponent in Starlight Colosseum.
- Colosseum Knight — optional final battle of the historical Starlight Colosseum.
- Wendigo — historical nighttime hunt.
Replaying bosses
Most active major bosses can be replayed for rewards. The weakened encounter titled The Hollowed Knight (Quest) is an exception: it is a one-time story battle. Historical encounters cannot currently be replayed because their events have ended.