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|This feature is exclusive to Bedrock Edition.|
To create an Old World, simply select the "Old" type in the World Type drop-down of the world creation screen. Optionally, on low-end devices, toggle "Limited worlds" in the Video section of the options screen. This sometimes fails due to limited access. [EE only]
Old worlds consist of a finite map with an area of 256×256 blocks with 128 maximum block height.
Biomes that cannot be generated in this world type:
However, as a result of their limited size, only a few biomes can be generated per world. Also, biomes that generate in here are shrunken 4× (16× area) to allow more biomes to generate. When creating an Old World, the player always spawns in the middle of the world. If starter map is enabled, the map is in scale level 1⁄4 rather than of 3⁄4. Additionally, despawn radius in during world creation or world edit can be up to 256 blocks, rather than up to 128 blocks as in flat and infinite.
Because of the player always spawning in the middle of the world, the center of the world is very rarely at 0,0, meaning the game generates the full world in order to find a valid spawnpoint, then it limits the world to 256×256. It is possible, through NBT editing, to move the center of an old-world to another area in the seed.
Structures that can generate in the Overworld in this world type are:
- Villages, sometimes generating at the border and getting cut off by the border, resulting in a village without any meeting point, only one house, or a jobsite building, or even just a road.
- Lakes can still generate normally, but lava lakes do not generate near bedrock. Also, lakes do not generate under Y=10, due to the ground being completely solid.
- Other generated structures, such as mineshafts, ocean monuments, woodland mansions, strongholds, dungeons, desert pyramids, jungle pyramids, swamp huts igloos, ocean ruins, shipwrecks, and pillager outposts never generate, making resources very limited.
- Unlocking the last tier of cartographer villagers causes the game to stop ticking.
- Obtaining an explorer map from commands causes extreme glitching, which may cause a crash.
- Feeding a dolphin causes it to try to swim outside the world border.
- Only double tall grass and large ferns can generate. Due to normal grass and fern not generating, savannas are less grassy.
- Caves and ravines do not generate in this world type, making the underground area solid. Rarely, hollow areas generate.
- With this world type, the Overworld is the only dimension that generates. Attempting to go to other dimensions results in the portal not being activated.
- Rarely, desert wells generate in this world types.
- On very rare occasions, buried treasure and fossils can generate in Old-world types.
Due to the structure limitation in this world type, many resources become unobtainable in survival, and some mobs cannot spawn naturally.
Because of that, playing survival in this world type is challenging, due to the structure limitation reducing resources and also affecting mob spawning. While water always generates in this world type, lava doesn't. If the Overworld didn't generate lava in this finite 256 x 256 world, then cobblestone becomes nonrenewable without going to the Nether.
Both Nether and End are also bordered with the size 256×128×256. The Nether still generates normally, but the 8:1 travel ratio is maintained, meaning that returning to the Overworld may cause the player to become stuck (due to the Overworld being 256×128×256 in size). If a nether fortress is generated, it is most likely going to be cut down by the world border. Despite nether portals not being able to be activated, returning from the Nether to the Overworld causes a newly activated Nether portal to generate in the overworld (this is due to nether portals not counting when placed with commands).
The End in Old worlds generates only the central island without the outer islands. Sometimes the end fountain does not generate and the ender dragon sometimes gets stuck at the border. End gateway portals also don't work.
Converting to Infinite
To convert an Old world to an Infinite type, select the pencil icon next to the old world in the world selection screen, then select "Make Infinite!". This creates a new world with all of the saved data (inventory, terrain, structures, etc.) of the old world, sets the world type to Infinite, and keeps the world name; the old world is then renamed
After converting to Infinite, the terrain copied from the old world has a terrain wall separating it from the added area, as infinite worlds generate larger biomes.
This act is impossible in Minecraft China.
|Pocket Edition Alpha|
|0.1.0||Released along with the first official version of Pocket Edition. At the time, this was the only available world type.|
|Featured a basic terrain generation with 4 "biomes" (forest, legacy frozen ocean, snowy taiga, and desert).|
|0.1.3||Cacti now generate in deserts|
|0.9.0||Old is now an optional world type, with the addition of Infinite and Flat world types.|
|Changed terrain generation, adding new generated structures, biomes, and foliage colors.|
|0.11.0||Old worlds can now be converted into Infinite worlds.|
|0.16.0||build 1||Removed old worlds.|
|build 5||Re-added old worlds.|
|1.0.0||alpha 0.17.0.1||Added the end dimension in old worlds, which is inaccessible without commands.|
|1.2.0||beta 220.127.116.11||Old worlds are no longer surrounded by invisible bedrock, and chunks near the border are glitched.|
|1.10.0||beta 18.104.22.168||Due to villages being overhauled, village generation is now rarer.|