From the design bible. Planned: numbers may change before they are in the game.
World
| Tier | Where | Biomes | New materials | Boss |
|---|---|---|---|---|
| T1 | 0–800 m | Meadow, Forest, Birch Forest, Beach, Ocean | wood, stone, flint, coal, copper, tin | Thornback (Forest) |
| T2 | 800–2000 m | Hills, Mountains, Pine Taiga | iron (rare in T1 below y = 0), granite | Stone Warden (Mountains) |
| T3 | 2000–3500 m | Swamp, Mangrove, Badlands | silver, peat, swamp herbs, rice | Bog Mother (Swamp) |
| T4 | 3500 m+ | Frost Peaks, Glacier, Frozen Ocean | frostglass, frostroot | Rime Wyrm (Frost Peaks) |
| Deep | below y = −64 anywhere | Deepstone caverns, magma lakes | deepiron, magma core, emberbloom | Deep Tyrant (Deep vault) |
Ore
| Ore | Tier | Height | Ring | Drops | Skill XP |
|---|---|---|---|---|---|
| Coal | 1 (stone) | −64–200 | all | coal 1 | 4 |
| Copper | 1 | −32–100 | T1+ | raw copper 1–2 | 5 |
| Tin | 1 | −32–60 | T1+ | raw tin 1 | 5 |
| Iron | 2 (bronze) | −64–120 (T2+), −64–0 in T1 at 25% | T2+ | raw iron 1 | 8 |
| Silver | 3 (iron) | −64–40 | T3+ | raw silver 1 | 12 |
| Gold | 3 | −64–20 | T3+ | raw gold 1 | 14 |
| Gems (amethyst, emerald, ruby) | 3 | −64–30 | T2+ | gem 1 | 20 |
| Frostglass | 4 (steel) | 60–255 | T4 | frostglass shard 1–2 | 25 |
| Deepiron | 5 (frostglass) | −128–−64 | Deep | raw deepiron 1 | 40 |