Each type of biome has its own biome number, shown in the following table. These biome numbers are used when creating a customized superflat world. Biome variations seem to have a number of 128 + <original biome number>.
| Number | Biome | Variation | Variation Name |
|---|---|---|---|
| 0 | Ocean | N/A | N/A |
| 1 | Plains | 129 | Sunflower Plains |
| 2 | Desert | 130 | Desert M |
| 3 | Extreme Hills | 131 | Extreme Hills M |
| 4 | Forest | 132 | Flower Forest |
| 5 | Taiga | 133 | Taiga M |
| 6 | Swampland | 134 | Swampland M |
| 7 | River | N/A | N/A |
| 8 | Hell | N/A | N/A |
| 9 | The End | N/A | N/A |
| 10 | FrozenOcean | N/A | N/A |
| 11 | FrozenRiver | N/A | N/A |
| 12 | Ice Plains | 140 | Ice Plains Spikes |
| 13 | Ice Mountains | N/A | N/A |
| 14 | MushroomIsland | N/A | N/A |
| 15 | MushroomIslandShore | N/A | N/A |
| 16 | Beach | N/A | N/A |
| 17 | DesertHills | N/A | N/A |
| 18 | ForestHills | N/A | N/A |
| 19 | TaigaHills | N/A | N/A |
| 20 | Extreme Hills Edge | N/A | N/A |
| 21 | Jungle | 149 | Jungle M |
| 22 | JungleHills | N/A | N/A |
| 23 | JungleEdge | 151 | JungleEdge M |
| 24 | Deep Ocean | N/A | N/A |
| 25 | Stone Beach | N/A | N/A |
| 26 | Cold Beach | N/A | N/A |
| 27 | Birch Forest | 155 | Birch Forest M |
| 28 | Birch Forest Hills | 156 | Birch Forest Hills M |
| 29 | Roofed Forest | 157 | Roofed Forest M |
| 30 | Cold Taiga | 158 | Cold Taiga M |
| 31 | Cold Taiga Hills | N/A | N/A |
| 32 | Mega Taiga | 160 | Mega Spruce Taiga |
| 33 | Mega Taiga Hills | 161 | Redwood Taiga Hills M |
| 34 | Extreme Hills+ | 162 | Extreme Hills+ M |
| 35 | Savanna | 163 | Savanna M |
| 36 | Savanna Plateau | 164 | Savanna Plateau M |
| 37 | Mesa | 165 | Mesa (Bryce) |
| 38 | Mesa Plateau F | 166 | Mesa Plateau F M |
| 39 | Mesa Plateau | 167 | Mesa Plateau M |