ModsJava
Pepsi's Upgradeable Spawners
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
Upgrade your spawners by placing an item frame anywhere on a spawner and placing the upgrade item into that frame. The upgrade item then gets consumed, emptying the item frame. Available upgrades:
- Eye of Ender: Entity spawn count (4 Upgrades. Up to 8 entities)
- Heart of the Sea: Decrease maximum spawn delay (4 Upgrades. Down to 10 seconds)
- Daylight Detector: Increase spawner activation range (4 Upgrades. Up to 80 blocks)
- Echo Shard: Decrease spawn range for smaller farms (3 Upgrades. Down to 1 block)
- Nether Star: Disable spawned entity AI (Single upgrade)
Disable the spawner by having a redstone torch placed inside an item frame that's on the spawner. Remove the redstone torch to resume the spawner.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21, 1.21.8, 1.21.5
- 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.
File checked by MCModsHub
- Ships as upgradeable-spawners-1.0.0.jar — drop this file into the mods folder
- Download size: 890 KB
- Download link checked 24 Oct 2026 — working
These come from our own check of the pack file, not from the source page.