Spawner Upgrades
Spawner Upgrades lets players change a mob spawner's behavior by right-clicking it with ordinary vanilla items, adjusting how often and how many mobs it produces.
What it does
Each vanilla item applied to a spawner pushes one setting up or down. Sugar shortens the minimum spawn delay, Fermented Spider Eye lengthens it, and a Clock shortens the maximum delay while Bone lengthens it. Blaze Powder adds to the spawn count, Rotten Flesh removes from it, Ender Pearl widens the spawn range and Clay Ball narrows it. Feedback appears in the action bar, and the settings persist on the spawner block itself.
Two items change how the spawner treats players and mobs. Dragon's Breath removes the nearby-player requirement, so the spawner keeps working with nobody close by, and Echo Shard restores it. Magma Cream stops newly spawned mobs from being free of drops, and Slime Ball returns future mobs to normal behavior. Limits apply to every upgrade, and custom advancements mark reaching upgrade milestones.
The mod is published for Fabric only, for Minecraft 26.2, and it is client and server, so the server and every player need it. It is released under the MIT License but is not open source. Vanilla items are the only inputs, so no other mod is required.
Key features
Timing upgrades
Sugar, Fermented Spider Eye, Clock and Bone adjust the minimum and maximum spawn delays.
Spawn count and range
Blaze Powder, Rotten Flesh, Ender Pearl and Clay Ball raise or lower how many mobs spawn and how far they appear.
Player requirement
Dragon's Breath removes the nearby-player requirement, and Echo Shard puts it back.
Mob behavior and limits
Magma Cream and Slime Ball change how newly spawned mobs behave, and upgrades are capped by configurable limits.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Players who want to tune mob spawners with vanilla items on Fabric for Minecraft 26.2, and server owners who want upgrades to persist on spawners across their world.
How it compares
Vanilla Spawners Expanded runs on Fabric for 1.20.1 – 26.2 with the same client and server environment, under the Creative Commons Attribution Non Commercial 4.0 license, and is not open source. TNTProofSpawners is a Fabric and Quilt mod for 26.2 that runs on the server alone, under the MIT License, and is not open source. Spawner Upgrades differs by requiring both sides and using vanilla items for upgrades.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Spawner Upgrades | Fabric | 26.2 | Client and server | 2026-09-04 |
| Vanilla Spawners Expanded | Fabric | 1.20.1 – 26.2 | Client and server | 2026-07-05 |
| TNTProofSpawners | Fabric and Quilt | 26.2 | Server-side only | 2026-08-04 |
Questions
Does Spawner Upgrades need another mod?
Does the server need Spawner Upgrades installed?
Can a spawner be reset after upgrades?
In the catalog
Spawner Upgrades is one of 7,216 Magic mods on ModsFinder, and one of 3,630 Magic mods for Fabric. 13,894 mods support Minecraft 26.2.
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What the author says
Spawner Upgrades adds a simple vanilla-item upgrade system for mob spawners. Right-click a spawner with different items to change its spawn delay, spawn count, spawn range, nearby-player requirement, and spawned mob behavior.
Official listing
- Modrinth page
- modrinth.com/mod/spawnerupgrades
- Owner
- Soviet_Spy651
- Published
- 2026-09-04
- Updated on Modrinth
- 2026-09-04
- Facts verified
- 2026-10-15