Terrain archetypes and extremities
Compare Classic plus 13 base archetypes and 15 eligibility-gated extremities, keeping terrain locks and charted worlds distinct.
These guides describe the October 23, 2026 development version. The older download with the same version number is missing later features.
Discovery spoilers aheadEligibility and existing land
These are terrain rules, not 29 extra planets. Classic plus 13 base archetypes and 15 extremities choose large-scale shapes. Gas Giant requires a Large planet; tall shapes need enough height. Charted worlds retain base archetypes, and older generated worlds preserve their terrain locks rather than silently rerolling.
| Archetype ID | Tier | Terrain character |
|---|---|---|
| Varied | Base | Continents, seas, hills and ranges |
| Archipelago | Base | Island chains in open sea |
| Canyonlands | Base | Plateaus and terraced canyons |
| Mesa Plateaus | Base | Cliff-edged tablelands |
| Sky Islands | Base | Islands over a low world |
| Shattered | Base | Tilted plates and deep rifts |
| Cratered | Base | Overlapping impact craters |
| Dune Sea | Base | Waves of dunes |
| Glacier Sheet | Base | Ice and crevasses |
| Volcanic Calderas | Base | Great volcanic calderas |
| Honeycomb | Base | Linked cave cells |
| Titan Ranges | Base | Higher mountain ranges |
| Salt Pans | Base | Flat pans and shallow pools |
| River Delta | Base | Braided wetland channels |
| Amplified | Uncommon | Spire, overhang and valley extremes |
| Flatlands | Uncommon | Almost flat with scattered large features |
| Vast Regions | Uncommon | Biomes/continents four to eight times larger |
| Terraced Hills | Uncommon | Stepped rolling hills |
| Stone Forest | Uncommon | Pinnacles among water and meadow |
| Cenote World | Uncommon | Plateau sinkholes over flooded caves |
| Sea World | Rare | Deep ocean with few small islands |
| Floating Archipelago | Rare | Layered islands above void |
| Ice Shell | Rare | Frozen crust over hidden sea |
| Lava Sea | Rare | Basalt islands in molten ocean |
| Giant Basins | Rare | Large impact basins with rings and terraces |
| Titan Forest | Rare | Huge trunks and walkable canopies |
| Hollow World | Rare | Thin crust over cavern, pillars and lakes |
| Tidally Locked | Rare | Hot day, frozen night and twilight belt |
| Gas Giant | Exotic | Cloud reefs/platforms and crushing depths |
Tidal Split depends on position; positionless checks use noon. Gas giants have depth-related fog, skies and hazards. Eligibility and generation locks still govern these features. Use universe and worlds for the finite surface pool and biomes for resource-feature references.
Admin & server owner reference
Exact identifiers, original fields and source locators are preserved below. These records describe the documented mod version; they are not commands to run or proof of a new gameplay test.
| Archetype ID | Tier | Terrain character |
|---|---|---|
| classic | Base | Continents, seas, hills and ranges |
| archipelago | Base | Island chains in open sea |
| canyonlands | Base | Plateaus and terraced canyons |
| mesa_plateau | Base | Cliff-edged tablelands |
| sky_islands | Base | Islands over a low world |
| shattered | Base | Tilted plates and deep rifts |
| cratered | Base | Overlapping impact craters |
| dune_sea | Base | Waves of dunes |
| glacier_sheet | Base | Ice and crevasses |
| caldera | Base | Great volcanic calderas |
| honeycomb | Base | Linked cave cells |
| mega_mountains | Base | Higher mountain ranges |
| salt_pans | Base | Flat pans and shallow pools |
| river_delta | Base | Braided wetland channels |
| amplified | Uncommon | Spire, overhang and valley extremes |
| flatlands | Uncommon | Almost flat with scattered large features |
| big_biomes | Uncommon | Biomes/continents four to eight times larger |
| terraced | Uncommon | Stepped rolling hills |
| karst | Uncommon | Pinnacles among water and meadow |
| sinkhole | Uncommon | Plateau sinkholes over flooded caves |
| sea_world | Rare | Deep ocean with few small islands |
| floating_islands | Rare | Layered islands above void |
| ice_shell | Rare | Frozen crust over hidden sea |
| lava_sea | Rare | Basalt islands in molten ocean |
| crater_mega | Rare | Large impact basins with rings and terraces |
| mega_flora | Rare | Huge trunks and walkable canopies |
| hollow | Rare | Thin crust over cavern, pillars and lakes |
| tidally_split | Rare | Hot day, frozen night and twilight belt |
| gas_giant | Exotic | Cloud reefs/platforms and crushing depths |
Sources & verification
Evidence: pdf-derived. Feature status: gated. Article coverage: ready.
Documented input: October 23, 2026 source snapshot; declared 0.0.1-p0
PDF pages 12–13 · October 23 source snapshot — Terrain archetypes and extremities · Beyond the Overworld report: E033–E037
October 23, 2026 source snapshot; older October 5 JAR is not equivalent. PDF-derived; no new mod build, game session or source/JAR audit. Pack overrides unknown.
The wiki has not independently playtested report-derived instructions. Your server or modpack settings may change them.