ScrewYourMobs!
by vinntekk
ScrewYourMobs! removes unwanted mobs from a world using simple JSON rules, and lets server operators edit those rules in the game.
What it does
Rules name the entities to remove by ID or by tag, such as minecraft:creeper or minecraft:raiders, and each rule can be limited to specific dimensions or left empty so it applies everywhere. Entities matched by a rule are despawned as soon as they appear, and certain named mobs and tamed animals are skipped during bulk purges. The mod was first built to replace the entity filter of The Broken Script, which it requires.
Rules can be written by hand in JSON or created in the in-game editor, opened with the sym command, where rules can be added, renamed, enabled, disabled or validated without touching the filesystem. Entries are checked live against the registry, and unknown IDs are flagged with suggested corrections based on edit distance. The mod is server-side only, with edits limited to operators at level 2 and synced to clients so the editor shows the real state. Files exist for Forge and NeoForge on Minecraft 1.20.1 and 1.21.1, and it is not open source.
Key features
JSON removal rules
Rules list entity IDs or tags to despawn anywhere in the world, with the same rule covering both single mobs and groups.
Per-dimension scope
Each rule can apply to chosen dimensions or to all of them when its dimensions list is left empty.
In-game rule editor
A sym command opens a GUI where rules are created, renamed, toggled and validated without editing files.
Live validation with suggestions
Unknown entity IDs and tags are flagged with close matches, and missing mod namespaces are reported separately.
Exemptions for named mobs
An exempt list protects specific entities from removal, and named mobs and tamed animals are skipped during bulk purges.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
How it compares
Per-Dimension Game Rules is server-side only, under All rights reserved, with files for 1.19.2 – 1.21.1 on Fabric, Forge, NeoForge and Quilt, and it adjusts game rules rather than mobs. Simple Craft Editor is a client and server mod under a custom license for 1.20.1 – 26.3, aimed at crafting recipes. Boring Default Game Rules is server-side only, open source under the MIT License and published for 1.17 – 1.21.8 on Fabric and Quilt.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| ScrewYourMobs! | Forge and NeoForge | 1.20.1 – 1.21.1 | Server-side only | 2026-10-10 |
| Per-Dimension Game Rules | Fabric, Forge, NeoForge and Quilt | 1.19.2 – 1.21.1 | Server-side only | 2025-10-18 |
| Simple Craft Editor | Fabric, Forge and NeoForge | 1.20.1 – 26.3 | Client and server | 2026-09-26 |
| Boring Default Game Rules | Fabric and Quilt | 1.17 – 1.21.8 | Server-side only | 2025-06-14 |
Questions
Does ScrewYourMobs! need The Broken Script?
Which loaders does ScrewYourMobs! support?
Does ScrewYourMobs! have to be installed on clients?
Can rules be changed without restarting?
In the catalog
ScrewYourMobs! is one of 8,016 Management mods on ModsFinder, and one of 2,698 Management mods for Forge. 32,366 mods support Minecraft 1.21.1.
More from vinntekk
Similar mods
What the author says
Previously known as "Screw_SubAnomaly1". Automatically despawns entities the moment they spawn! Based on JSON rules you write yourself.
Official listing
- Modrinth page
- modrinth.com/mod/screwyourmobs
- Owner
- vinntekk
- Published
- 2025-08-28
- Updated on Modrinth
- 2026-10-10
- Facts verified
- 2026-10-15