Oops! All mobs.

Makes end and nether mobs spawn in the overworld!

212 Downloads

forgeneoforgemobs

Rent Server with this Mod

About this Mod

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Mod Description

The dimensions have collapsed... and the Overworld will never be the same.

The barriers between realms are gone. The Nether’s flames and the End’s void have spilled into your once-safe world. Nowhere is safe.

Features:

Ghasts, magma cubes, wither skeletons, hoglins, piglins, piglin brutes, endermites, shulkers, blazes and striders all spawn in the overworld now.

Available Versions

Oops! All mobs. 1.0.0release

MC 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5neoforge

June 6, 2025

Oops! All mobs. 1.0.0release

MC 1.20.1forge

June 6, 2025

How to Install Oops! All mobs. on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (1.21.5).

Install Mod

Open the mod browser in the dashboard and search for "Oops! All mobs.". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

forgeneoforge

Minecraft Versions

1.21.5, 1.21.4, 1.21.3 (+3 more)

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Oops! All mobs. server crashes on startup – what to do?

Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.5). You can switch loaders with one click in the panel.

Is Oops! All mobs. compatible with forge and neoforge?

Oops! All mobs. officially supports forge, neoforge for Minecraft 1.21.5, 1.21.4, 1.21.3. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Oops! All mobs. – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Oops! All mobs. consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.