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General game properties

General game properties.

(allow-flight) Allow flight on the server.
(difficulty) Sets the difficulty for the server.
(enable-command-block) Allow access to command blocks.
(force-gamemode) Forces everyone into the game mode every time they log on.
(gamemode) Sets the default game mode on the server.
(hardcore) Enables hardcore mode. Players are set to spectator mode if they die.
(player-idle-timeout) Defines the time before a player is kicked for being idle on the server.
(pvp) Toggles PvP on the server. If enabled, players can kill each other.
(view-distance) Sets the amount of world data the server sends the client, measured in chunks in each direction of the player (radius, not diameter). It determines the server-side viewing distance.

World properties

World properties.

(allow-nether) Allow the nether dimension.
(simulation-distance) Sets the maximum distance from players that living entities may be located in order to be updated by the server, measured in chunks in each direction of the player (radius, not diameter). If entities are outside of this radius, then they will not be ticked by the server nor will they be visible to players.
(spawn-animals) Defines whether or not animals can spawn.
(spawn-monsters) Defines whether or not monsters can spawn.
(spawn-npcs) Defines whether or not villagers can spawn.

Determines the side length of the square spawn protection area as 2x+1.

Setting this to 0 disables the spawn protection.

A value of 1 protects a 3x3 square centered on the spawn point. 2 protects 5x5, 3 protects 7x7, etc.

World generation

World generation properties.

(generate-structures) Defines if the server should generate structures, like villages, temples, mansions and so on.
(generator-settings) Used to customize world generation.
(level-name) The value is used as the world name and its folder name.
(level-seed) Defines the level seed for when the world is generated.

Determines the type of map that is generated.

  • default - Standard world with hills, valleys, water, etc.
  • flat - A flat world with no features, can be modified with generator-settings.
  • largeBiomes - Same as default but all biomes are larger.
  • amplified - Same as default but world-generation height limit is increased.

Only for 1.15 or before:

  • buffet - Same as default unless generator-settings is set.
  • default_1_1 - Same as default, but counted as a different world type.
  • customized - After 1.13, this value is no different than default, but in 1.12 and before, it could be used to create a completely custom world.


Properties related to the whitelist.

(enforce-whitelist) Enforces the whitelist on the server.
(white-list) Enable the whitelist on the server.

Operator (OP)

Properties related to operators.

(broadcast-console-to-ops) Broadcasts the console output to OPs on the server.
(broadcast-rcon-to-ops) Broadcasts RCON output to the OPs on the server.
(function-permission-level) Sets the default permission level for functions. See op-permission-level for the details on the 4 levels.

Sets the default permission level for ops when using /op. All levels inherit abilities and commands from levels before them.

  • 1 - Ops can bypass spawn protection.
  • 2 - Ops can use all singleplayer cheats commands (except /publish, as it is not on servers; along with /debug) and use command blocks. Command blocks, along with Realms owners/operators, have the same permissions as this level
  • 3 - Ops can use most multiplayer-exclusive commands, including /debug, and commands that manage players (/ban, /op, etc).
  • 4 - Ops can use all commands including /stop, /save-all, /save-on, and /save-off.

Connection properties

Properties related to the server connection.


Makes the server appear as online on the server list.

If disabled, it will suppress replies from clients. This means it will appear as offline, but will still accept connections.

(hide-online-players) When set to true, does not show a player list on status requests.
(max-players) Sets the maximum amount of players excluding OPs, that's allowed on the server.

Sets the MOTD seen on the multiplayer screen in the Minecraft client.

Pssst. Did you know that you can create your MOTD here?

(online-mode) Checks connecting players against the Minecraft account database.
(server-ip) The IP of the server.
(server-port) The port of the server.


Query properties.

(enable-query) Enables query. Server lists will use this, to get information about the server.

Defines the port, query information is sent on.

Unless you have a good reason, this should always be the same as server-port.


RCON properties.

(enable-rcon) Enable remote control of the server.
(rcon.password) Defines the password for the RCON feature.
(rcon.port) Defines the port for the RCON feature.

Resource pack

Properties for resource packs.

(require-resource-pack) When this option is enabled (set to true), players will be prompted for a response and will be disconnected if they decline the required pack.

Optional URI to a resource pack. The player may choose to use it.

Note that (in some versions before 1.15.2), the ":" and "=" characters need to be escaped with a backslash (\), e.g. http\://\=somevalue

The resource pack may not have a larger file size than 250 MiB (Between 1.17 and 1.15: 100 MiB, Before 1.15: 50 MiB)

(resource-pack-prompt) Optional, adds a custom message to be shown on resource pack prompt when require-resource-pack is used. Expects chat component syntax, can contain multiple lines.
(resource-pack-sha1) Optional SHA-1 digest of the resource pack, in lowercase hexadecimal. It is recommended to specify this, because it is used to verify the integrity of the resource pack.

Advanced properties

Don't touch these, unless you know what your doing.

(debug) Debug field. No one really know what this does…
(enable-jmx-monitoring) Allow Java Management Extensions access to the server information.
(entity-broadcast-range-percentage) Controls how close entities need to be before being sent to clients. Higher values means they'll be rendered from farther away, potentially causing more lag.

The maximum number of milliseconds a single tick may take before the server watchdog stops the server. Once this criterion is met, it calls System.exit(1). Setting this to -1 disables the watchdog entirely.

(max-world-size) Sets the maximum possible size in blocks, expressed as a radius, that the world border can obtain.

By default it allows packets that are n-1 bytes big to go normally, but a packet of n bytes or more gets compressed down. So, a lower number means more compression but compressing small amounts of bytes might actually end up with a larger result than what went in.

  • -1 - disable compression entirely
  • 0 - compress everything

If the ISP/AS sent from the server is different from the one from Mojang Studios' authentication server, the player is kicked

  • Enabled - Server prevents users from using vpns or proxies.
  • Disabled - The server doesn't prevent users from using vpns or proxies
(rate-limit) Sets the maximum amount of packets a user can send before getting kicked. Setting this to 0 disables this feature.
(snooper-enabled) Sets whether the server sends snoop data regularly to
(sync-chunk-writes) Enables synchronous chunk writes.
(text-filtering-config) Allows you to specify an online service for filtering text, such as chat and text of written books.
(use-native-transport) Linux server performance improvements: optimized packet sending/receiving on Linux.