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{{distinguish|Map}}
{{about|in-game worlds|the ''Minecraft'' theme parks|Minecraft World}}
[[File:Minecraft world overview.png|thumb|An extensive view of the Overworld]]
A '''world''' or '''level''' is an individual ''Minecraft'' "universe" which encompasses all [[Minecraft:Block|blocks]] and [[Minecraft:entities]] in each [[Minecraft:dimension]]. Worlds can be accessed and edited through the [[Minecraft:world selection menu]] from the [[Minecraft:main menu]] and can be created with the "[[Minecraft:Create New World]]" button.

== Description ==
Worlds are split into three [[Minecraft:dimension]]s, which are in turn composed of [[Minecraft:block]]s of various sizes, usually either cubic or composed of one or more cuboids, or of flat plane images, all of which are arranged in [[Minecraft:wikipedia:Cubic honeycomb|a Euclidean grid]]. [[Minecraft:Fluid]]s, [[Minecraft:entities]] and [[Minecraft:particles]] also exist within these worlds, and certain locations of the world can possess [[Minecraft:biome]]s and different levels of [[Minecraft:light]]. Blocks and entities can possess other attributes such as [[Minecraft:item]]s, [[Minecraft:effect]]s and, by extension, [[Minecraft:enchantment]]s. The terrain of world is [[Minecraft:World generation|procedurally generated]] before [[Minecraft:players]] can modify blocks and entities within. Various [[Minecraft:structure]]s and [[Minecraft:features]] can also generate inside worlds, sometimes containing [[Minecraft:chest]]s with [[Minecraft:chest loot|loot]] inside.

A player can manage settings for gameplay and world generation before world creation in the [[Minecraft:Create New World]] screen, and after creation through [[Minecraft:game rules]] and the [[Minecraft:edit world]] screen.{{Only|be|short=1}} Worlds can be generated with several [[Minecraft:world types]], and there are generation options for the [[Minecraft:world seed]] and the [[Minecraft:Bonus Chest|bonus chest]]. From the world options, the player can manage the world file, including duplicating, deleting, exporting (to transfer the world or upload to a [[Minecraft:server]]),{{Only|be|short=1}} and uploading to [[Minecraft:Realms]]. Worlds can be modified using [[Minecraft:resource packs]], [[Minecraft:data packs]],{{Only|je|short=1}} [[Minecraft:behavior packs]],{{Only|be|short=1}} and [[Minecraft:experiments]]. World content can be created efficiently using projects in ''[[Minecraft:Bedrock Editor]]''.

''Minecraft Realms'' allows server-hosting and world storage online. Each Realm can store three worlds in slots and automatical backups or manual cloud saves,{{Only|be|short=1}} which can be accessed from any device by the Realm owner.

== Storage ==
=== ''Java Edition'' ===
{{main|Java Edition level format}}
Each world is saved in its own separate folder in the <samp>[[Minecraft:.minecraft]]/saves</samp> folder. Files relating to [[Minecraft:chunk]]s in the Overworld are stored in the base world save folder, Nether files are stored in the <samp>DIM-1</samp> subfolder, and End files are stored in <samp>DIM1</samp>. Each dimension has its own {{cd|data|poi|region|d=and}} folders that is stored in its directory.

=== ''Bedrock Edition'' ===
{{See also|Bedrock Edition level format}}
Each world is saved in its own separate folder in the <code>[[Minecraft:com.mojang]]/minecraftWorlds</code> folder. This world folder can be compressed into a <code>.zip</code> file, which can be changed into a <code>.mcworld</code> file to tranfer the world. Exporting worlds on Windows devices automatically zips the world in a <code>.mcworld</code> file, which can be imported on non-console devices by opening the file with the ''Minecraft'' app, or using the import world feature in the [[Minecraft:play]] screen.

==== Directory structure ====
<div class="treeview">
* {{File|directory|''internal world ID''}}
** {{File|directory|behavior_packs}}: Contains world [[Minecraft:behavior packs]].
** {{File|directory|db}}
*** {{File|file|000005.ldb}}: Uneditable binary file.
*** {{File|file|000006.log}}: Uneditable log file.
*** {{File|file|''region ID''.dat}}{{note|The region ID is a 6-digit number. The region containing the player{{verify}} is a .log instead of a .dat.}}
*** {{File|file|CURRENT.dat}}: Contains file name of the "MANIFEST-<ID>" file.
*** {{File|file|LOCK.dat}}{{info needed|Not all worlds have this. Does is depend on the version in which the world was created?}}
*** {{File|file|MANIFEST-<ID>.dat}}
** {{File|file|[[Minecraft:Bedrock Edition level format#level.dat|level.dat]]}}
** {{File|file|level.dat_old}}: File that can be used as a backup for the other DAT file.
** {{File|file|levelname.txt}}: Contains the name of the world.
** {{File|directory|resource_packs}}: Contains world [[Minecraft:Resource pack|resource packs]].
** {{File|file|world_behavior_pack_history.json}}: Contains the UUID of all behavior packs that have ever been enabled for the world.
** {{File|file|world_behavior_packs.json}}: Determines which behavior packs stored in {{File|directory|development_behavior_packs}} are enabled for the world.
** {{File|file|world_icon.jpeg}}: The thumbnail of the world, which can be changed to an in-game [[Minecraft:screenshot]] in the edit world screen. Must be a 800x450 pixels JPEG file.
** {{File|file|world_resource_pack_history.json}}: Contains the UUID of all resource packs that have ever been enabled for the world.
** {{File|file|world_resource_packs.json}}: Determines which resource packs stored in {{File|directory|development_resource_packs}} are enabled for the world.
* {{Notelist}}
</div>

==== World template ====
A world file can be converted to a world template to easily modify its contents, such as add-ons and additional languages for the world name, in order to let a player create a new world with data stored in the template.<ref>{{Cite|url=https://learn.microsoft.com/en-us/minecraft/creator/documents/createaworldtemplate?view=minecraft-bedrock-stable|title=Create a World Template from an Exported World|website=Microsoft Learn|date=December 5, 2023}}</ref> A world template uses the same directory structure as regular world files, with a few additional JSON files.<div class="treeview">
* {{File|directory|''internal world ID''}}
** {{File|file|[[Minecraft:manifest.json]]}}: Mandatory file, must specify {{Cd|"world_template"}} type. Contains the name and ID of the world. If the name and description are set to {{Cd|pack.name}} and {{Cd|pack.description}}, these will be assigned the texts specified in the localization files. Optionally, {{Cd|"allow_random_seed" : true}} can be added to the header to override seeds stored in the world data and generate a new world with a random seed.
** {{File|directory|texts}}
*** {{File|file|languages.json}}: Specifies all languages used.
*** {{File|file|''languagecode''_''COUNTRYCODE''.lang}}: A language file for localization. Multiple language files can be used.

===== Localization =====
The in-game name and description of the world template can be changed for any [[Minecraft:language]]. The LANG file should contain {{Cd|1=pack.name=}} followed by the name of the template, and {{Cd|1=pack.description=}} followed by the description. {{Cd|languages.json}} should contain an array of all language codes used.[[File:Ore UI - Play Screen "Worlds" Tab - Create From Template Button Screen Menu (Bedrock).png|thumb|The "Create from..." screen.]]

===== Importing =====
A finished world template can be zipped and packaged as a {{Cd|.mctemplate}} file. Opening this file will automatically import it as a world template, stored in {{Cd|com.mojang/world_templates}}. World templates can also be imported on Windows in the "Create from..." screen opened after pressing the "Create new world" button in the [[Minecraft:play]] screen.

All imported world templates are shown in the "Create from" screen. Selecting a world template will show the description, and opening it will open the [[Minecraft:Create New World]] screen with all data from the world template. Even though it may contain saved chunks and player data, the [[Minecraft:world seed]] (if {{Cd|"allow_random_seed" : true}}) can be changed, which may result in a sharp boundary between the saved chunks and newly generated chunks. Furthermore, [[Minecraft:Hardcore]] can be toggled again, allowing to revive dead players. Various game settings can be locked using <code>lock_template_options</code>, which requires to confirm a warning before one can change them.

World templates can also be purchased from the [[Minecraft:Marketplace]]. A list of Marketplace and [[Minecraft:Marketplace Pass]] world templates is shown in the "Create from..." screen, which can create a world similar to custom world templates.

===== Backward-compatibility =====
[[File:Vibrant Visuals older versions.png|thumb|A world locked in 1.17.0 using world templates, notable for the old world generation and low cloud height. [[Vibrant Visuals]], as a client-side setting, can still be enabled but misses PBR textures.]]In a world template, the <code>base_game_version</code> can be set to any minor release after [[Minecraft:Bedrock Edition 1.13.0|1.13.0]].<ref>{{Citation|url=https://learn.microsoft.com/en-us/minecraft/creator/documents/basegameversioning?view=minecraft-bedrock-stable|title=World Templates and Base Game Versioning|website=Microsoft Learn}}</ref> When set to an older version, the world will be created without vanilla resource and behavior packs from higher versions. In other words: the world is locked in an older version, features behave differently, have older looks, and new features are not available. Because the engine still runs on the latest version, unlike with backward-compatibility in ''Java Edition'', certain features do behave differently from the actual game version. This includes hard-coded features outside resource and behavior packs, [[Minecraft:music]], and various bugfixes, as well as features in the game that are not part of the world (such as menu screens).
</div>

== History ==
{{Incomplete section|History of worlds for other editions}}

=== ''Java Edition'' ===
{{HistoryTable
|{{HistoryLine|java pre-classic}}
|{{HistoryLine||rd-132211| Level data is saved in a single level.dat file inside the game's root directory.}}
|{{HistoryLine|java classic}}
|{{HistoryLine||0.0.13a|Added online level saving for players with accounts.}}
|{{HistoryLine||0.0.13a_03|Fixed a bug on level saving by updating the LWJGL version.}}
|{{HistoryLine||0.0.14a|Saved levels do not load properly.}}
|{{HistoryLine||0.0.14a_03|Level loading appears to have been fixed now.}}
|{{HistoryLine||0.0.19a|Generating a new level while on a multiplayer server, or saving the server level, no longer works.}}
|{{HistoryLine||0.25 SURVIVAL TEST|Added proper saving and loading of Survival mode worlds.}}
|{{HistoryLine||0.28|Altered the level saving/loading code.}}
|{{HistoryLine||0.30|Online saving is no longer available for free accounts.
|It is now possible to save a level locally.}}
|{{HistoryLine|java indev}}
|{{HistoryLine||0.31|dev=20091223-0040|New work-in-progress level format.
|Level saving/loading no longer works.}}
|{{HistoryLine|||dev=20100122-2251|Players can now save and load the game locally using the Indev level format.}}
|{{HistoryLine|java infdev}}
|{{HistoryLine||20100227-1414|Level saving and loading is no longer functional, as saving a level produces an empty .mclevel file.}}
|{{HistoryLine||20100313|Since the game does not yet save anything to the disk, players lose data from chunks they unload.}}
|{{HistoryLine||20100327|The game now automatically saves while playing.
|Level saving is now possible again and uses the new Alpha level format.}}
}}

=== Legacy Console Edition ===
{{HistoryTable
|{{HistoryLine|console}}
|{{HistoryLine||xbox=TU0|xbone=CU1|ps3=1.00|psvita=1.00|ps4=1.00|wiiu=Patch 1|switch=1.0.1|Added worlds. Worlds can be created, saved, and deleted.}}
|{{HistoryLine||xbox=TU3|Added a save file cache to improve the speed of displaying the saves list.}}
|{{HistoryLine||xbox=TU5|Added the ability to rename an existing world.|Added a confirmation dialog on the player choosing to exit without saving.}}
}}

==Issues==
{{Issue list}}

== Gallery ==
=== ''Java Edition'' ===
<gallery>
MainMenu SPMain.png|The world selection screen {{in|je}}.
1.21.11 Create New World - Game.png|The world creation screen {{in|je}}.
</gallery>

=== ''Bedrock Edition'' ===
<gallery>
File:Ore UI - Play Screen Menu "Worlds" Tab - Grid Mode (Bedrock).png|The "Worlds" tab of the "Play" menu
File:Ore UI - Create New World Screen Menu "General" Tab Settings (Bedrock).png|The "Create New World" screen
File:Realms Configure (Bedrock).png|World management on Realms
File:New UI - Realms Hub Screen Menu "World" Tab - Slots (Bedrock Preview 26.20.22).png|World selection on Realms{{Upcoming}}
</gallery>

== See also ==
* [[Minecraft:Anvil file format]]
* [[Minecraft:World type]]
* [[Minecraft:World size]]
* [[Minecraft:World border]]
* [[Minecraft:World boundary]]
* [[Minecraft:World generation]]
* [[Minecraft:Autosave]]

==References==
{{Reflist}}

== Navigation ==
{{Navbox environment}}

[[Minecraft:de:Spielstand-Speicherung]]
[[Minecraft:es:Mundo]]
[[Minecraft:fr:Monde]]
[[Minecraft:ja:ワールド]]
[[Minecraft:pt:Mundo]]
[[Minecraft:ru:Мир]]
[[Minecraft:uk:Світ]]
[[Minecraft:zh:世界]]

Minecraft:World - Revision history

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