
Calmer Nights
Reduces spawn rates of hostile (or any other) mobs in your world
About this Mod
Description
A mod that makes nights more peaceful by controlling hostile mob spawning.
You decide:
Which mobs have spawn restrictions
How often they can spawn
Their maximum number in the world
Whether they spawn only at night or at any time
Key features
Customizable mob lists – add or remove mobs and fine-tune their relative spawn chances.
Time-based control – restrict spawns to nighttime or allow them anytime.
Dynamic population control – automatically prevents mob overcrowding.
Simple config file – no coding needed.
Default configuration
["General Settings"]
max_hostile_mobs = 20
spawn_cooldown = 10
spawns_per_window = 3
debug_mode = false
["Mob Spawn Settings"]
mobs = [
"minecraft:zombie,0.1,false",
"minecraft:zombie_villager,0.1,false",
"minecraft:skeleton,0.1,false",
"minecraft:creeper,0.1,false",
"minecraft:spider,0.1,false",
"minecraft:enderman,0.1,false",
"minecraft:witch,0.1,false",
"minecraft:phantom,0.1,true",
"minecraft:drowned,0.1,false",
"minecraft:husk,0.1,false",
"minecraft:stray,0.1,false",
"minecraft:slime,0.1,false"
]
max_hostile_mobs – maximum allowed number of mobs from the list that can exist in the world simultaneously.
spawn_cooldown – delay (in seconds) between mob spawn attempts.
spawns_per_window – maximum number of mobs that can spawn between cooldown periods.
debug_mode – toggles debug messages in the chat.
mobs – list of mobs with custom spawn rules in the format: namespace:entity,spawn_chance,night_only
namespace:entity– the mob's ID (e.g., minecraft:zombie). Supports modded mobs.spawn_chance– relative spawn probability (e.g., 0.1 = 10% chance compared to other mobs in the list)night_only– if true, spawn restrictions apply only at night. This means that mobs from the list will only spawn at night and will not spawn, for example, during the day on the surface or in caves. If false, always active.
Use /calmernights reload to reload the mod and config
Available Versions
How to Install Calmer Nights on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.10).
Install Mod
Open the mod browser in the dashboard and search for "Calmer Nights". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.10, 1.21.9, 1.21.8 (+8 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Calmer Nights server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.10). You can switch loaders with one click in the panel.
Is Calmer Nights compatible with fabric and forge and neoforge?
Calmer Nights officially supports fabric, forge, neoforge for Minecraft 1.21.10, 1.21.9, 1.21.8. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Calmer Nights – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Calmer Nights consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Install Calmer Nights with just one click on your server.