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- level.dat [edit | edit source] The data version is stored in two places inside the level.dat file of a world save: in the root Data compound named DataVersion and also in the Version compound named Id.
minecraft.wiki/w/Data_version
People also ask
How to find a level DAT file in Minecraft?
What is a level DAT file?
What does level DAT & level dat_old do?
What happens if I save a level DAT file?
Do level DAT & level dat_old do random numbers?
Why is there no seed in level DAT?
Feb 7, 2022 · Problem is the seed is first of all 2 numbers in an array in level.dat, and the numbers don't mix in an obvious way to make the appropriate seed that is found when typing /seed. Obviously the data is saved somewhere, the worlds load the same seed in both single player and multiplayer.
- Overview
- Folders
- Level.dat format
- GeneratorOptions tag format
- Session.lock format
- Poi format
- See also
This feature is exclusive to Java Edition.
Each level is its own folder. A level folder is often identified by having a level.dat file, along with other subfolders to store the maps and regions of the level.
Level folders will always contain the items in bold, and will sometimes contain the items in italics.
The level.dat file contains global information about the world such as the time of day, the singleplayer player, the level generator used, and the seed. When a world is loaded, the current level.dat is backed up to level.dat_old. It is an NBT file with this structure:
•The root tag.
•Data: This tag contains all the level data.
•allowCommands: 1 or 0 (true/false) - true if cheats are enabled.
•BorderCenterX: Center of the world border on the X coordinate. Defaults to 0.
•BorderCenterZ: Center of the world border on the Z coordinate. Defaults to 0.
The generatorOptions tag format varies depending on the generator name. It only affects the Overworld dimension. This applies to 1.15 and below.
This is the format for the Buffet world type:
•generatorOptions:
•biome_source:
•options: Ignored if the biome source ID is minecraft:vanilla_layered.
•biomes:
This file contains a single character ☃ (\u2603) encoded (E2 98 83) in UTF8.
The process goes something like this:
1.Program opens session.lock
2.Program writes a single character ☃ to session.lock
3.Program tries to lock session.lock
4.If the lock on session.lock fails, program aborts and gives up its lock on the level.
Files in poi folder use similar structure to region Anvil files (hence the mca extension), but the NBT content is different.
•The root tag.
•Data: This tag contains all the level data.
•Sections: Keys are stringified chunk section's Y coordinate (can be negative, a section at Y=2 starts at block Y=32).
• :
•Valid: True (1) when created by the game, however, if the decoding of POI NBT (from the region file) data fails, and the game then save the region file again, it might save false (0). This key is internally set to true when the POI section is refreshed, and a refresh always happens when the chunk section (with terrain data) at the same coordinates is decoded. To sum up, it is very unlikely to get false.
•Bedrock Edition level format
Minecraft: Java Edition
Versions
•Demo
•Locations
•PC Gamer Demo (Beta 1.3)
Nov 14, 2021 · We are going to see how to find the Minecraft level.dat file, how to edit it and how to solve corrupted game saves linked to this file.
Nov 28, 2023 · Minecraft's data files are in a proprietary file format called NBT (named binary tag). You're gonna need an editor specifically designed to open these, such as NBTExplorer (runs on Windows, Linux, Mac).
Mar 20, 2023 · The next day when I went to play, it had disappeared from the Minecraft game screen. I then found it in the Minecraft world folder, knowing which world it was due to it having no name or picture in the levelname.txt and world_icon.jpeg folders.
I saw them in NBTexplorer, and seem to be just as the regular level.dat file, so that's why I'm clueless about why did they generated in the first place.
Reply reply. Nomojo01. •. I started a world in 1.18.1 during the snapshots, and I have a perimeter around my base that looks like that. I think it's because they were tweaking the world generation algorithm at that time.
