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Stealth and AlertMinecraft mod for 1.21.1

A Minecraft mod bringing a stealth and alert system just like what in other games.

client and servernewest supported release 1.21.1AdventureGame Mechanics
Latest version
0.1.2-beta.6
Minecraft
1.21.1
Java
Java 21+
Loader
NeoForge
Licence
MIT
Downloads
1.3k
Updated
3 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Stealth and Alert servers

One click and Stealth and Alert is installed with the right loader, on hardware built for it.

  • 1.21.1
  • NeoForge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Stealth and Alert declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge21+declared8 Aug 2024

Download

From Stealth and Alert’s own host. Nothing is re-hosted here.

Most recently published release

0.1.2-beta.6beta8 Aug 2026

stealth_and_alert-1.21.1-NeoForge-0.1.2-beta.6.jar · 1.3 MB · for 1.21.1 · NeoForge

Download this release
b0b0f88c156e…
Older versions16
  • 0.1.2-beta.52 Aug 20261.21.11.3 MB1a974a73dcfd…Get
  • 0.1.2-beta.429 Jul 20261.21.11.3 MB47 downloadsc70b1cd3a706…Get
  • 0.1.2-beta.327 Jul 20261.21.12.2 MB24 downloads0f462ef8aedf…Get
  • 0.1.2-beta.2-hotfix25 Jul 20261.21.12.1 MB63 downloadsc6a870b40976…Get
  • 0.1.2-beta.225 Jul 20261.21.12.1 MB4 downloadsf0671c9a754f…Get
  • 0.1.2-beta21 Jul 20261.21.10.4 MB36 downloadsa6ab523bb975…Get
  • 0.1.2-alpha2 Jul 20261.21.10.3 MB223 downloadsdffd81ae0ff6…Get
  • 0.1.1-release18 May 20261.21.10.2 MB317 downloads19112a888640…Get
  • 0.1.0-release17 May 20261.21.10.2 MB17 downloads8e9aa54afd5d…Get
  • 0.0.7-beta14 May 20261.21.10.2 MB32 downloadsdb1ea23ec0ad…Get
  • 0.0.6-beta12 May 20261.21.10.2 MB21 downloads94cb84c7a6ac…Get
  • 0.0.5-alpha11 May 20261.21.10.2 MB19 downloads5a74db402024…Get
  • 0.0.4-alpha11 May 20261.21.10.1 MB20 downloadsdd2378723354…Get
  • 0.0.3-alpha10 May 20261.21.10.1 MB20 downloads156093fc551c…Get
  • 0.0.2-alpha22 Apr 20261.21.10.1 MB61 downloadsd1e377c9f87a…Get
  • 0.0.1-alpha18 Apr 20261.21.1101 KB14 downloads9f4092a174c4…Get

Dependencies

What Stealth and Alertdeclares it needs, from the author’s own release metadata. A required one has to be installed alongside it or it will not load.

playerAnimatorRequired. animate the player

Frequently asked

Does Stealth and Alert work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Stealth and Alert declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Do I need to install Stealth and Alert on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does Stealth and Alert support?

NeoForge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Stealth and Alert?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What does Stealth and Alert need to run?

It declares playerAnimator as required, so that has to be installed alongside it or it will not load. Each one is linked in the dependencies section above.

What licence is Stealth and Alert under?

MIT, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Stealth and Alert?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Stealth and Alert safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

BookshelfAn open source library for other mods!GeckoLibA 3D animation library for entities, blocks, items, armor, and more!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.

Details from Modrinth, where the author last updated it on 8 Aug 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .