From the design bible. Planned: numbers may change before they are in the game.
| Boss | Offering | Health | Phases and attacks | Trophy | Opens |
|---|---|---|---|---|---|
| Thornback, a giant boar | 8 raw pork + 4 berries | 400 | Charge (telegraphed by pawing, dodge sideways), tusk sweep, at 50%: thorns burst from the ground in a ring | Thornback Trophy | Iron tier |
| Stone Warden, a golem | 3 iron blocks + 1 gem | 1200 | Slam with shockwave (jump it), throws boulders, at 50%: armour plates fall off, core exposed, takes 2× damage to the core | Warden Core | Steel tier, blast furnace, waystones (Building), composite bow (Archery) |
| Bog Mother, a slime queen | 6 peat + 4 silver ingots + 1 swamp lily (wild in T3 swamps) | 2000 | Spawns bog slimes, poison pools, at 50%: submerges and surfaces under players | Bog Heart | Frostglass tier, splash potions tier 2 |
| Rime Wyrm, an ice serpent | 4 frostglass + 4 frostroot | 3200 | Flies in arcs, frost breath (cold), ice spikes from the ground, at 50%: blizzard (darkness, wind) | Wyrm Scale | Deepiron tier, magma ward armour |
| Deep Tyrant, a molten titan | 6 deepiron ingots + 1 magma core + 4 emberbloom | 5000 | Lava waves, falling stalactites, at 66% and 33%: summons magma crawlers and changes arena lava height | Tyrant's Heart | Legendary items, Hearthforged armour, Grand Hearth |