Mob Spawn Indicator

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Mob Spawn Indicator

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Highlights block surfaces where hostile mobs can spawn using color-coded overlays.

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Minecraft
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Available Platforms

CurseForge logo CurseForge Modrinth logo Modrinth

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About

Project Details

Type
Mod
License
GNU Lesser General Public License v3.0 only
Latest Version
msi-1.0.0.jar
Authors
CurseForge
Modrinth

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Modrinth ID

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About

Description

Mob Spawn Indicator highlights valid mob spawn floors in your vicinity with color-coded overlays. It uses vanilla spawn rules, so it works on any server without needing to be installed server-side.

Features

  • Color-coded overlays on valid spawn floors: red (danger), yellow (warn), green (safe)
  • Configurable render distance, opacity, and which colors to display
  • Settings GUI accessible from the Options screen or via commands
  • Client-side only — works on vanilla servers, SMPs, and modded servers

Commands

  • /msi settings — open the settings GUI
  • /msi toggle — toggle the overlay on/off
  • /msi on | /msi off — enable or disable the overlay
  • /msi reset — reset all settings to defaults

Configuration

Default keybind: J (toggle overlay)

Config file: config/msi-common.toml

Option Default Description
render_rad 16 Render distance in blocks
overlay_opacity 0.5 Overlay transparency
show_danger true Show red overlay (valid spawn, no space for mobs)
show_warn true Show yellow overlay (valid spawn, 1 block space)
show_safe false Show green overlay (valid spawn, 2+ block space)

Notes

  • Uses vanilla Minecraft spawn rules: slabs, stairs, trapdoors, glass, and leaves are correctly excluded as non-spawnable
  • Overlays update every 5 ticks
  • Works in singleplayer, LAN, and multiplayer

Mob Spawn Indicator highlights valid mob spawn floors in your vicinity with color-coded overlays. It uses vanilla spawn rules, so it works on any server without needing to be installed server-side.

Features

  • Color-coded overlays on valid spawn floors: red (danger), yellow (warn), green (safe)
  • Configurable render distance, opacity, and which colors to display
  • Settings GUI accessible from the Options screen or via commands
  • Client-side only — works on vanilla servers, SMPs, and modded servers

Commands

  • /msi settings — open the settings GUI
  • /msi toggle — toggle the overlay on/off
  • /msi on | /msi off — enable or disable the overlay
  • /msi reset — reset all settings to defaults

Configuration

Default keybind: J (toggle overlay)

Config file: config/msi-common.toml

Option Default Description
render_rad 16 Render distance in blocks
overlay_opacity 0.5 Overlay transparency
show_danger true Show red overlay (valid spawn, no space for mobs)
show_warn true Show yellow overlay (valid spawn, 1 block space)
show_safe false Show green overlay (valid spawn, 2+ block space)

Notes

  • Uses vanilla Minecraft spawn rules: slabs, stairs, trapdoors, glass, and leaves are correctly excluded as non-spawnable
  • Overlays update every 5 ticks
  • Works in singleplayer, LAN, and multiplayer

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