
Modrinth · Minecraft mod
Stealth and Alert
A Minecraft mod bringing a stealth and alert system just like what in other games.
Quick answer
Which Stealth and Alert release should I use?
Stealth and Alert 0.1.1-release targets 1.21.1 with NeoForge. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is Stealth and Alert required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does Stealth and Alert 0.1.1-release need?
0.1.1-release. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Stealth and Alert without breaking your instance.
Built for Stealth and Alert 0.1.1-release. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 0.1.1-release. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 0.1.1-release. It opens that exact file at the source.
About this project
What does Stealth and Alert add?
Stealth & Alert
The mod is new. There maybe many bugs and feel free to report them. More mechanics are under development.
Stealth & Alert introduces a tactical stealth system to Minecraft, inspired by the perception mechanics of some games like Assassin's Creed.

🎯 Key Features
- Circular HUD: A dynamic indicator around the crosshair tracking enemy positions and alert levels (White/Yellow/Red).
- Perception AI: Mobs with the added entity tag now possess realistic FOV and transition through Idle, Suspicious, Searching, and Fighting states.
- In-world Alert Symbol: There will be spesific symbols and animations to indicate their alert state and to indicate if they've seen a player.
- Target Tracking States: The mod distinguishes between the mob's overall alertness and its specific observation status of each player, ensuring a deep and logical detection flow.
- Visibility System: Light, environment and player's action can affect player's Visibility to make an influence on enemies' awareness towards player. When Visibility is lower than a threshold, player will be invisible; but getting too close to enemies will still make enemies spot you. It is showned by an HUD.
- Environment Stealth: When standing in an area full of tall grass, or crawling in an area full of short grass, or staying in a place dark enough, and so on, will make you invisible, which means a player can sneak taking advantage of environments to be not seen by enemies.
- Sound System: What players do will make sounds, reacted to by enemies - but you can also make use of that feature, using Pebbles or other throwables to attract them away.
- LKP (Last Known Position): Mobs investigate the spot where they last saw the player, rather than using "god-mode" tracking.
🚀 The Vision
- This mod aims to build a comprehensive stealth ecosystem. Upcoming updates will keep improving the mechanics introduced, and introduce Assassinations, and Corpse Discovery.
Project description from Modrinth.
Pick your setup
Stealth and Alert by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Stealth and Alert versions and loaders
0.1.2-beta.5
stealth_and_alert-1.21.1-NeoForge-0.1.2-beta.5.jar
2 Aug 2026
0.1.2-beta.4
stealth_and_alert-1.21.1-NeoForge-0.1.2-beta.4.jar
29 Jul 2026
0.1.2-beta.3
stealth_and_alert-1.21.1-NeoForge-0.1.2-beta.3.jar
27 Jul 2026
0.1.2-beta.2-hotfix
stealth_and_alert-1.21.1-NeoForge-0.1.2-beta.2-hotfix.jar
25 Jul 2026
0.1.2-beta.2
stealth_and_alert-1.21.1-NeoForge-0.1.2-beta.2.jar
25 Jul 2026
0.1.2-beta
stealth_and_alert-1.21.1-NeoForge-0.1.2-beta.jar
21 Jul 2026
0.1.2-alpha
stealth_and_alert-1.21.1-NeoForge-0.1.2-alpha.jar
2 Jul 2026
0.1.1-release
stealth_and_alert-1.21.1-NeoForge-0.1.1-release.jar
18 May 2026
0.1.0-release
stealth_and_alert-1.21.1-NeoForge-0.1.0-release.jar
17 May 2026
0.0.7-beta
stealth_and_alert-1.21.1-NeoForge-0.0.7-beta.jar
14 May 2026
0.0.6-beta
stealth_and_alert-1.21.1-NeoForge-0.0.6-beta.jar
12 May 2026
0.0.5-alpha
stealth_and_alert-1.21.1-NeoForge-0.0.5-alpha.jar
11 May 2026
Looking for an older file? The official Modrinth project page is in Resources.