The Biome determines the shape of the terrain and basic temperature and rainfall guidelines. Unlike in vanilla, it does not directly define tree and plant growth. For determination of trees, and animals see Climate.
There are 7 Main Biomes and 5 Technical Biomes. Biomes are pseudo-randomly generated using the map seed. Main biomes provide the general shape of the terrain along with the altitude. Technical biomes provide smoother transitions between main biome types, or introduce extra custom features within a main biome, such as rivers, beaches and border areas.
|Ocean||An extremely large, open biome made entirely of water, with underwater relief on the sea floor, such as small mountains and plains, usually including dirt, sand and clay. Small islands with infrequent vegetation can be found in oceans. Squid will also spawn in the water. Oceans can also be generated as technical biomes, appearing as deep ponds on beaches.|
|Plains||A relatively flat biome.|
|High Plains||Similar to the Plains biome but at a higher altitude.|
|Swamp||A biome characterized by a mix of flat, dry areas around the sea level and shallow pools of water with floating lily pads. Peat, clay, sand, and dirt are commonly found at the bottom of these pools. The colors of the water, grass, leaves, and vines are much darker than in other biomes. Mushrooms and reeds are very abundant.|
|Mountains||Can reach as high as y = 230.|
|Rolling Hills||Similar to the Plains biome, with slightly more hilly terrain reaching up to y = 155|
|High Hills||Similar to the Mountain biome but not as high.|
|Construction||Barrels • Blueprints • Bricks • Firepit • Plank Blocks • Protection Meter • Quern • Smooth Stone • Straw & Hide Bed • Support Beams • Thatch|
|Environment||Altitude • The Player • Calendar • Cobblestone • Logs • Mobs • Saplings • Seasons • Stone • Temperature • Trees|
|Food||Agriculture • Animal Husbandry • Berries • Fruit Trees|
|Materials||Charcoal • Coal • Double Ingots • Double Sheets • Flux • Gems • Gunpowder • Hides • Ingots • Leather • Lumber • Minerals • Pottery • Redstone/Powders • Sheets • Sticks • Straw • Unshaped Metal • Wool|
|Metalworking||Alloys • Anvils • Armor • Bellows • Blast Furnace • Bloomery • Tool Molds • Crucible • Forge • Gold Pan • Metals • Ores • Sluice|
|Tools & Weapons||Arrows • Axe • Buckets • Chisel • Firestarter • Flint & Steel • Hammer • Hoe • Javelin • Knife • Mace • Pickaxe • Prospector's Pick • Saw • Shovel • Sword • Scythe • Shears • Spindle|
|Other||Crafting Differences • Item Index|