Seed (level generation)

seed level generation 068893

Seeds are values made up of positive or negative characters, including integers, that are used as the basis for generating the Minecraft world.


Although seeds are somewhat compatible across editions, with the same terrain generation and biomes, structure locations still vary between Java Edition and Bedrock Edition.

World generation[]

The game calls upon an algorithm known as Perlin noise to generate a new world, using the same seed to ensure that the outputs for each time are always the same. However, this algorithm also outputs a pseudo-random value that is used to determine the features and characteristics of the terrain in the generated world. Thus, the same seed generates the same seed, generating the same value for each time. Whenever a new world is generated in the game, this algorithm is used to determine the features and characteristics of the world.

A world is created when a seed is set. It can be automatically decided, but it can also be manually set. By reusing and setting a seed from one world, the same world is generated. The same world generates the same world. Negatives, including a phrase or a number, can also be included. If a phrase or word is used, it is converted into a 32-bit integer. If a phrase or word is used, it is also converted into a 32-bit integer.

Every time the world generation algorithm is modified (typically by incorporating new biomes into the game), the identical seed no longer produces the identical terrain. If the seed or generator is altered in a saved world, fresh chunks are created based on the new seed and no longer correspond to those generated from the previous seed. Deleted chunks can regenerate if the seed and generator remain unaltered, but will change if either the seed or generator is modified. In fact, the deletion of chunks is occasionally carried out to allow newly-introduced features to appear in an existing world; refer to Tutorials/Updating old oceans in 1.13 using MCEdit.

The relevance of a seed’s value does not result in any relevance in the world.

Determining the seed[]

In Java Edition, players have the option to input the seed, which allows them to observe the world’s seed. This command remains accessible in singleplayer worlds, even with cheats disabled. Additionally, players can choose the ‘Re-create’ option in the Worlds menu to view the seed.

The Edition Bedrock offers several pre-set seeds that players can use to generate worlds with specific features near the spawn point. Additionally, there are also templates available that provide players with various seed options found in the world. The beta version has a visible seed displayed at the top of the screen.



In the Java Edition, players have the ability to enter /seed in the chat. However, in the Bedrock Edition, the seed is not displayed on Realms.


In order to explore the entire range of potential worlds (264, or 18,446,744,073,709,551,616), either number seeds or a default world seed must be employed. This limitation confines Minecraft to a smaller selection of possible worlds, specifically 232 (or 4,294,967,296), as a result of utilizing the int datatype. If the seed consists of non-numeric characters or exceeds a length of 20 characters, the Java String.HashCode() function is utilized to generate a number seed.

Overlap between editions[]

Despite having varying structures, decorator positions, carver caves, and mob spawns, both Java and Bedrock editions produce identical terrain and biomes for all seeds within the range of -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807.

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Generation quirks[]

This section lacks information on elaborating extensively on these phenomena.

Input: Nha Trang Institute of Oceanography is an interesting destination for people of different ages. The Institute of Oceanography in Nha Tr

By utilizing specific seeds, it is feasible to witness captivating outcomes.

Changing terrain without changing some structures[]

It is possible to create various worlds with similar cave systems, Nether biomes, and other arrangements of generated structures by transforming the seed into binary and adjusting the desired bits. Only particular parts of the seed are utilized to generate specific features in the world. For instance, the seed generator utilizes the initial 48 bits exclusively to generate cave systems and badlands clay banding layers.


Clock JE3

This portion requires updating.

Can you please replace the information provided with the updated and recent ones? If there are any changes or recent updates regarding Part Cliffs & Caves, please make sure to update this section accordingly.

Duplicate Caves

Seed 164311266871034 in spectator mode. Caves are repetitive along the Z axis.

Endlesscanyon wideangle

Seed 1669320484 in Bedrock Edition, with repeating canyons.

In Java Edition, when calling the first method with a parameter of 0, it returns a seed of 107038380838084, while calling the second method with a parameter of 0 returns a seed of 164311266871034. These seeds generate infinite arrays and caves structures, causing underwater ravines and mineshafts, respectively, in the internal code. Additionally, the loops on the Z and X axes are involved in this process.

Decorations, such as features in seeds, can repeat and generate diagonally.

1000686894 and -1171867832 are the seeds that vertically repeat the generation of Mineshaft. 1669320484 and 289849025 are the seeds that occur with repetition decoration and dungeon, ravine, cave diagonal in Bedrock Edition.

Any seed computed as 4294967296 × n + 1669320484 also produces maps with recurring characteristics.[7].




Clock JE3

This portion requires updating.

Please revise this section to depict the latest updates or newly accessible information. Reason: Bedrock experimental modifications.

Java Edition pre-Classic
rd-160052 Added a simple level generator.
Java Edition Classic
0.0.12a Added a new level generator.
August 25, 2009 Showed another new level generator, which generates cliffs more commonly.
Java Edition Indev
0.31 20091223-2 Isometric level rendering screenshot added.
20100106 The player can now select island, floating, flat, or original as the level type when generating a world.
Players can also select square, long, or deep as the level shape.
Players can also select small, normal, or huge as the level size.
20100107 Deep floating maps now have layers of islands.
Players can now select a level theme; normal or hell.
20100110 Islands now generate with more sand.
20100113 Oceans now generate with infinite water.
20100122 Water now spawns naturally above sea level and on floating islands.
Caves are now less flooded.
Java Edition Infdev
20100227-1 Terrain-breaking change to world gen: using any given seed on older versions now generates a different world.
World generation has been greatly simplified (with the removal of sand, blobs) in order to make infinite world generation implementation easier to work with.
20100227-2 Brick pyramid generation changed – they will now always come to a single point at the top, rather than sometimes being truncated, resulting in “brick square frusta”.
20100313 Oceans are considerably larger than before.[check the code]
20100320 Reimplemented primitive ore blob generation, in which they spawn as scattered, single blocks.
Reimplemented tree generation.
20100325 Ore blob generation has been changed to the modern generation type. However, a float is used in their generation, causing their generation to break down at excessive distances.
Added caves. They generate through all blocks, not just terrain blocks.
20100327 Terrain-breaking change to world gen: using any given seed on older versions now generates a different world.
World generation has been significantly overhauled, which is visually very obvious.
Removed caves.
Removed random patches of flowers.
The large stone wall at 33,554,432 no longer generates. Instead, the Far Lands generate at 12,550,824.
20100413 All trees are now large trees.
Sand and gravel now generate with the world again.
20100420 Terrain-breaking change to world gen: using any given seed on older versions now generates a different world.
World generation seems considerably less mountainous.
20100608 All trees are now small trees again – big trees do not generate.
20100611 Terrain-breaking change to world gen: using any given seed on older versions now generates a different world.
Terrain now appears to come in large islands.
Terrain can now generate high enough to be higher than the world height limit, causing it to be cut off.
Monoliths now have the potential to generate.[verify]
The amount of trees that generate appears to be different now.
20100616 Terrain-breaking change to world gen: using any given seed on older versions now generates a different world.
Terrain generation in ocean[verify]
Reimplemented caves.
Random patches of flowers and mushrooms now generate.
Springs now generate.
Lava now naturally generates, although how it does so exactly is unknown.
Java Edition Alpha
v1.2.0 preview Terrain-breaking change to world gen: using any given seed on older versions now generates a different world.
Java Edition Beta
1.3 It is now possible to manually determine the seed upon world creation.
1.8 Pre-release Terrain-breaking change to world gen.
The debug screen now displays the seed number.
Java Edition
1.2.1 ? Multiplayer servers no longer send the seed to clients.
1.3.1 12w18a Due to singleplayer becoming multiplayer, the world’s seed is no longer displayed on the debug screen.
12w21a Added /seed, which displays the current world seed.
1.7.2 13w36a Terrain-breaking change to world gen with the introduction of many new biomes.
1.13 18w06a World generator rewritten in a non-breaking way.
1.18 1.18 Experimental Snapshot 1 Terrain-breaking change to the world gen with the introduction of multinoise, terrain noise, biome builders, and new caves.
Seed limit is now 48-bit.[9]
1.18 experimental snapshot 2 World generator rewritten in a non-breaking way.
21w41a Replaced the random number generator used in world generation, which reverted the seed limit back to 64-bit.[9]
Seeds have been reshuffled due to this change. Worlds will not look like as they did in previous snapshots.
21w43a Seeds have been reshuffled again. Worlds will not look like as they did in previous snapshots.
1.18.2 22w03a The seed “0” (zero) can now be used normally.
Any spaces before or after an inputted seed will now be trimmed.
Pocket Edition Alpha
v0.1.0 Added seeds.
v0.9.0 build 1 Terrain-breaking change to world gen: using any given seed on older versions now generates a different world.
Bedrock Edition
1.18.0 beta Terrain-breaking change to the world gen. Revamp Caves, Mountains, and Terrain height system.
beta Replaced the random number generator used in world generation, resulting in different terrain being generated using same seed.
beta Seeds have been reshuffled again. Worlds will not look like as they did in previous betas.
1.18.30 beta Worlds can now be created with 64-bit seeds.
Single-digit seeds such as “0” can now be used normally.
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Notable Java Edition seeds[]

The following are the official resources and Minecraft maps that have been used for generating significant community material or otherwise, at one point or another, the map seeds.

  • The seed input for the Java Edition demo world can be used to play the full version by entering North Carolina.
  • The PC Gamer demo world seed can be played in the appropriate era where entering the glacier is capitalized, unlike all the other lowercase glacier entering seeds.
  • The seed for every title screen panorama is as follows: The panorama used between Beta 1.8 Pre-release and 18w22c is either 2151901553968352745 or 8091867987493326313,[10] generated between Beta 1.6.6 and Beta 1.7.Beta 1.6.6 and Beta 1.7 between generated,[10] 8091867987493326313 or 2151901553968352745 either is 18w22c and Pre-release 1.8 Beta between used panorama The follows: as are panorama screen title each for seed The.
  • The landscape employed for Java Edition 1.13 is 1458140401, which is the result of entering 18w22a as a seed and generating it in snapshot 18w22a. In snapshot 18w22a, it is generated as a seed by typing 18w22a in, the landscape used for Java Edition 1.13 is 1458140401.
  • Java Edition 1.14, known as 280286708
  • Java Edition 1.15 is -440420550930310
  • Java Edition 1.16, captured in 20w13
  • Java Edition 1.18 has a numerical value of 215
  • The seed -1696067516, which is the result of typing “thewildupdate” as a seed, is used to generate the panorama for Java Edition 1.19. This seed was generated in snapshot 22w15a.
  • Java Edition 1.20 is 855447738069114
  • With slight variations in population, it can also be produced between Alpha v1.2.0 and Beta 1.7.3. The initial seed for the original pack.Png file is 3257840388504953787, generated in Alpha v1.2.2 [11].
  • The origin of the Skull on Fire artwork is either -6984854390176336655 or -1044887956651363087, created in Alpha v1.1.
  • The original Herobrine manipulated screenshot was created using the seed 478868574082066804, which was generated in Alpha v1.
  • The original livestream of the Herobrine hoax used the seed 3609313613745973624, which was generated in Alpha v
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  • ↑ A Brief Explanation of the ‘Map Seed’ – Jens Bergensten on Mojang.Com; February 23, 2011.
  • ↑ Https://www.Minecraftforum.Net/forums/minecraft-java-edition/seeds/2229720-can-two-different-seeds-produce-identical-worlds.
  • ↑ Http://stackoverflow.Com/questions/3065554/can-javas-random-function-be-zero.
  • ↑ MC-111378.
  • ↑ Https://www.Reddit.Com/r/MCPE/comments/5i6sae/recursive_infinite_mineshaft_seeds_on_mcpe/.
  • ↑ Https://www.Youtube.Com/watch?V=UtNXUMrSIxQ.
  • ↑ A b MCPE-
  • ↑ MCPE-114472.
  • ↑ A b MC-236
  • ↑ Https://www.Reddit.Com/r/Minecraft/comments/hthrmk/big_news_we_have_found_the_seed_of_minecrafts/.
  • ↑ Https://www.Reddit.Com/r/MinecraftAtHome/comments/iocx6f/packpng_seed_was_found_explanation_tutorial_and.
  • ↑ Https://www.Reddit.Com/r/Minecraft/comments/iqg3ey/the_original_screenshot_seed_of_the_minecraft/.
  • External links[]

    Bedrock and Java Editions[]

  • Chunkbase Minecraft Apps: Online seed/map explorer tool.
  • Minecraft Seeds on Reddit: Community-based Minecraft Seeds.
  • Minecraft Seeds: Minecraft Seeds driven by
  • SearchingForSeed: Discover Minecraft seeds from diverse categories.
  • Minemap.Org: High-quality maps for optimal seeds for the Java and Windows 10 (Bedrock) Edition.
  • Java Edition only[]

  • Random Seed Reader: Java tool for local use.
  • Minecraft SeedHunt: Curated Seeds from diverse categories for Java 1.16.
  • Java Edition Minecraft Seeds: Fresh Seeds for Version 1.16.4.
  • SeedCracker: predict a seed from a multiplayer server.
  • Seeder: Seed/map explorer tool and locator for Java.
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