
BackAlert
Warns you when hostile mobs approach from behind.
Screenshots


About this Mod
BackAlert
Warns you when hostile mobs approach from behind.


BackAlert is a client-side mod that warns you when hostile mobs approach from behind.
When danger is detected, a compact alert panel slides in from the side of the screen and shows the mob type and distance at a glance.
It stays out of the way during normal gameplay, making it useful for exploration, mining, and avoiding surprise attacks.
Available Versions
How to Install BackAlert on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "BackAlert". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 1.21.10, 1.21.9 (+8 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
BackAlert server crashes on startup – what to do?
Most common cause: wrong fabric 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 (1.21.11). You can switch loaders with one click in the panel.
Is BackAlert compatible with fabric?
BackAlert officially supports fabric for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with BackAlert – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if BackAlert 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.
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Rent Modded Server
Install BackAlert with just one click on your server.