Summon Slime Generator Summon Mob Generator

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Try the Commands Troubleshooting and Help page if you get stuff with server errors. Found a bug or want a feature, let us know on reddit.

Minecraft Slime NBT Data Tags

Using the summon command to spawn in a minecraft slime is simple, take the command and enter into chat and presto you have an slime.

How summon different sized Slimes

Slimes can be summoned at a range of sizes by setting the Size:1 tag.

Sizes 1, 2, or 3 are the regular spawn sizes. This example summons a large slime.

/summon minecraft:slime ~ ~ ~ {Size:3}

How summon a super giant sized Slime

Slimes can be summoned by setting the by setting the Size tag larger than the regular 3. A slime the size of 20 is a giant to see. These mega slime will also split into smaller cubes more times, as each size will split into the smaller size all the way down. The limit appears to be Size:64

/summon minecraft:slime ~ ~ ~ {Size:20}
Summoned minecraft mega slime

Minecraft Versions Permalinks

If you find yourself using a particular version all the time, you can link directly. There is some crossover between versions, so there will be quirks.

Version History

13 Aug 2026
minecraft/command-generator 2.41

addedUUID converter
patchFix for issue with items not re-encoding correctly for items, trades and containers
patchTrades for 1.20.4 and earlier now auto add Count if missing

6 Aug 2026
minecraft/command-generator 2.40

addedRefactored code base internally
patchSlime and Magma cubes, added isBaby tag
patchSulfur cubes added Size, and isBaby tags

30 Jul 2026
minecraft/command-generator 2.39

addedFull Mob Generator v2 rollout
patchMob spawner command generation


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