Mutant/Zombie Spawn System

Mutant/Zombie Spawn System 2.0

Server-side only.

Players do not need to download or install the main mod.

MZSS is a JSON-based spawn system for DayZ that lets you create custom zombie, mutant, animal and creature encounters anywhere on your server.

It was originally built for my own STALKER RP server. I needed a flexible way to bring more life, danger and atmosphere into custom areas without filling the whole server with AI all the time.

Since it became such a useful tool for my own server, I decided to share it with the community. It works great for custom bunkers, underground areas, POIs and maps that need more dynamic encounters.

What can it do?

• Create custom trigger zones anywhere on the map
• Spawn zombies, animals, mutants and other spawnable AI classnames
• Use tiers to group creatures by difficulty, type or theme
• Control spawn chances, cooldowns and despawn behavior
• Support bunkers, rooftops and interiors with fixed height spawning
• Reduce performance spikes with spawn budgets and soft spawning
• Keep corpses lootable while cleaning up living AI when areas are empty
• Reload configs without restarting the server

New in MZSS 2.0

MZSS 2.0 is a big cleanup and expansion update.

Your old `Zones.json` and `Tiers.json` will be migrated automatically and are not deleted.

New optional systems include:

• Anti-Clipping - helps prevent AI from spawning inside walls or custom objects
• Player Rules - let specific SteamIDs ignore zone triggers or be ignored by spawned AI
• Migration - zones can influence other zones for a lightweight A-Life style feeling
• Nests - create mutant nests, infected houses or dangerous hotspots
• Zone Notifications - show personal warning messages when players enter specific areas
• World State - save nest and migration cooldowns across restarts

All major new systems are optional. If you want to keep using MZSS like before, you can.

Optional Admin Tool

MZSS also has an optional Admin Tool for in-game editing.

The main mod stays server-side and works with JSON files only. The Admin Tool is only for servers that want a more comfortable workflow with zone editing, spawn point editing, previews, saving and hot reload directly in-game.

Because it contains UI, the Admin Tool is a separate client addon and is not required for MZSS to work. You can find the Tool here: https://steamcommunity.com/sharedfiles/filedetails/?id=3728838132

Supported Entities

MZSS can spawn vanilla infected, animals, modded mutants and other spawnable AI classnames.

MZSS does not include creatures by itself.

Credits & Support

Created by: MrNicerDicer Community: Exodus DayZ Forge Join the Discord for support, feedback and updates GitHub: MutantSpawnSystem

Support development: MZSS is free to use and takes a lot of time to maintain, test and improve. If you enjoy the mod and want to support future updates, you can leave a small donation here: Support me on Ko-fi

Final Note

Free to use and free to repack. If you redistribute modified versions, please credit the original author.

Compatible with DayZ 1.29+ All maps supported