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Lightsense project artwork

CurseForge · Minecraft mod

Lightsense

One key (F7) marks every block where a monster can spawn: red now, yellow at night. Uses the game's own per-dimension light test. Client side only.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Lightsense release should I use?

Updated yesterday
Latest stable file Lightsense 1.1.0 (Forge 1.20.1)
Game version 1.20.1
Loader Forge

Lightsense 1.1.0 (Forge 1.20.1) targets 1.20.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.

Where it goes

Is Lightsense required on the client, server, or both?

The project page does not say whether this file belongs on the client, dedicated server, or both.

Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Forge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source does not explicitly classify this release as client-only or server-only.

Understand client and server requirements Read the Minecraft installation guide

What else does Lightsense 1.1.0 (Forge 1.20.1) need?

Lightsense 1.1.0 (Forge 1.20.1). Change the file and its required mods may change too.

No extra mods listed for this file

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 Lightsense without breaking your instance.

Built for Lightsense 1.1.0 (Forge 1.20.1). Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use Lightsense 1.1.0 (Forge 1.20.1). It targets 1.20.1 with Forge; another release may have different loader, side or dependency requirements.

  2. 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.

  3. 03

    Put it on the correct side

    The project page does not say whether this file belongs on the client, dedicated server, or both.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside Lightsense 1.1.0 (Forge 1.20.1). It opens that exact file at the source.

About this project

What does Lightsense add?

Lightsense

One key shows where monsters can spawn. Red crosses where one can spawn right now, yellow crosses where one can spawn once night falls.

What it does

  • Press F7 (Controls > Lightsense) to cycle off, near (8 blocks), far (16) and wide (24).
  • A cross lies on every block where a monster could spawn: standing room for two blocks, on a block with a sturdy top.
  • Red: spawnable now. Yellow: safe now, but not at night.
  • The test is the game's own, per dimension: the block light limit and the highest sky-plus-block light a spawn is rolled against (0 to 7 in the Overworld, a flat 7 in the Nether). Light the yellow ones and the red ones with torches and the cave stays quiet.
  • Rescans twice a second; nothing is sent to or asked of the server.

Needs

  • Minecraft 26.3 (Fabric), or the other versions listed under Files
  • Fabric API on Fabric
  • Client side only

Replaces Light Overlay. MIT licensed. Found a bug? Include logs/latest.log.

Support

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Bug or idea? Leave a comment below. We read every one.

Project description from CurseForge.

Pick your setup

Lightsense by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

6 available setups

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

Lightsense versions and loaders

12 of 12 releases match

Looking for an older file? The official CurseForge project page is in Resources.

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