Ageing Mobs
Java mod listed for Minecraft 1.16–1.21. Downloads from the MC Java Mods app on Android.
I don't know my version or loader
This mod will allow certain mobs to age under certain conditions, when they reach this condition they will transform in to a different mob.
Mobs that can age by default using this mod:
- Creeper to Charged Creeper
- Zombie to Husk
- Husk to Zombie
- Baby Zombie to Zombie (also Baby Husk to Husk)
- Villager to Vindicator
- Vindicator to Evoker
- Guardian to Elder Guardian
- Endermite to Shulker
- Skeleton to Stray
- Stray to Skeleton
- Rabbit to Killer Rabbit
- Cow to Mooshroom
- Bat to Vex
Nether exclusive transformations:
- Skeleton to bow wielding Wither Skeleton
- Slime to Magma Cube
How can each mob transform:
- Creepers slowly age in thunderstorms, when they reach a certain age they can transform in to a charged creeper
- Zombie ages in hot biomes and will eventually change in to a husk
- Husks will age in cold biomes and will eventually turn in to a zombie
- Baby zombies will age over time eventually allowing them to grow up
- Villagers that are kept in dark places for to long will age and eventually turn in to a vindicator, their age will decrease while they are in light
- Vindicators with magical items near them (Bookshelves, Brewing stands and enchantment tables by default) will age and eventually turn in to a evoker
- Guardians will age over time and after a long time they will turn in to a elder guardian
- endermites will age over time, when you name these creatures they can stay alive much longer and will allow them to age to a point where they can burry themselves in purpur blocks, allowing the purpur block to eventually turn in to a shulker
- Skeletons in cold biomes will age and over time freeze in to a stray
- Strays will age in hot biomes this allows them to convert in to a skeleton
- rabbits left alone in darkness will allow them to age until they reach the feared age and turn in to a killer rabbit
- Cows on top of Mycelium or with mushrooms nearby will age over time and eventually turn in to mooshrooms
- bats will slowly age over time until they eventually transform in to a vex, Be careful while caving!
Nether transformations
- Skeletons in the nether will age and eventually burn up to a wither skeleton, their bow still seems to be intact
- Slimes that found their way to the nether will age and over time adapt to the heat of the nether allowing them to turn in to magma cube
CraftTweaker support
Adding new conversions is fairly easily done through CraftTweaker. For info on the CraftTweaker support check the Wiki

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- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.11, 1.21.10, 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as Ageing-Mobs-1.0.1.jar — drop this file into the mods folder
- Download size: 93 KB
- Download link checked 13 Oct 2026 — working
These come from our own check of the pack file, not from the source page.
