Mobs only spawn at night, and "despawn" at day.
You also get a few seconds of darkness at when night starts and a few seconds of night vision when daytime starts, so you can keep track of the time even while caving without a clock.
It will only despawn entities that:
- Are in the nocturnalmobs:hostiles tag
- Are in the overworld
- Do not have the {PersistenceRequired:1b} nbt (this includes mobs with nametags and those that have picked up items)
- Are not mounting an entity (careful with chicken jokeys!)
By default, the mobs in the nocturnalmobs:hostiles tag are:
- zombies
- zombie villagers
- husks
- drowneds
- skeletons
- strays
- spiders
- cave spiders
- creepers
- endermans
- phantoms
- slimes
- witches other mobs must be added via datapacks
You may disable the darkness and night vision by executing these commands:
- /function nocturnalmobs:config/disable_night_alert
- /function nocturnalmobs:config/disable_day_alert
and re-enable them using:
- /function nocturnalmobs:config/enable_night_alert
- /function nocturnalmobs:config/enable_day_alert
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.19, 1.19.1, 1.19.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
Verified by MCModsHub
- Downloads as NocturnalMobs.zip
- Download size: 6 KB
- Download link checked 1 Sept 2026 — working
These come from our own check of the pack file, not from the source page.