OnlyZombies: A Pure Zombie Survival Experience for Minecraft
Most survival worlds throw a little of everything at you: skeletons firing from the shadows, creepers sneaking up behind, endermen teleporting into your base. OnlyZombies takes that chaos and replaces it with a single, relentless threat. This lightweight add-on removes the majority of hostile and passive mobs so that zombies become the dominant force in your world, turning every night into a focused fight for survival.
What OnlyZombies Actually Changes
The core idea behind OnlyZombies is simple: if zombies are the only mob that spawns, the entire rhythm of the game shifts. You no longer worry about a creeper blowing a hole in your wall or a skeleton sniping you from a hill. Instead, you plan around hordes, sound cues, and the slow pressure of the undead closing in. It is a mod for players who want a cleaner, more thematic survival loop rather than a chaotic mix of enemies.
By default, the mod is active the moment you load into a world. That means you can drop it into an existing save and immediately feel the difference, though it is always smart to back up your world first.
Mobs Removed by OnlyZombies
When the add-on is enabled, the following mobs will no longer spawn naturally:
- Skeleton
- Spider
- Cave Spider
- Creeper
- Phantom
- Guardian
- Elder Guardian
- Enderman
- Pillager
- Vindicator
- Evoker
- Villager
- Silverfish
- Warden
- Slime
- Witch
That list covers most of the mobs that define a standard Minecraft playthrough, which is exactly the point. With villagers gone, trading is off the table, and with pillagers and evokers removed, raids simply do not happen. The world becomes quieter and more hostile in a very specific way, and zombies fill the vacuum.
The Gamerule That Controls Everything
OnlyZombies is managed through a single gamerule, which makes it easy to toggle on the fly. The command is:
/gamerule OnlyZombies true
The default value is true, so the mod works out of the box. If you ever want to bring the other mobs back, you can set the gamerule to false and the world returns to its normal spawn behavior. This is a nice touch for players who want to experiment with a zombie-only phase before reverting to a standard survival run.
Version and Loader Support
OnlyZombies is built for modern Minecraft releases and is distributed as a Forge mod, which means you will need a compatible Forge installation for your chosen game version. It works well alongside other lightweight gameplay tweaks, but keep in mind that any mod that adds or replaces mob spawns could conflict with the gamerule logic. If you are running a modpack, test OnlyZombies on its own first to confirm the spawn changes behave as expected.
For players who prefer a hassle-free setup, the foxygame.net launcher offers a one-click install for OnlyZombies, handling the correct Forge version automatically so you can jump straight into a zombie-dominated world without manual configuration.
How to Install OnlyZombies
Getting the mod running is straightforward. Follow these steps:
- Install a compatible version of Forge for your Minecraft release.
- Download OnlyZombies from a trusted source and place the .jar file into your mods folder.
- Launch Minecraft using the Forge profile.
- Create or load a world and confirm the gamerule is set to true.
- Type /gamerule OnlyZombies true if you need to enable it manually.
If the mobs are still spawning after installation, double-check that you launched the correct profile and that the gamerule was applied in the right world. A quick reload usually resolves any leftover spawn behavior.
Why Play a Zombie-Only World
Removing the mob variety does more than simplify combat. It changes base design, resource planning, and even the emotional tone of the game. Without creepers, you can build with stone and wood without fear of random explosions. Without skeletons, you can fight at range without dodging arrows. What remains is the slow, shuffling dread of a zombie horde, and that focus is what makes OnlyZombies memorable.
Whether you want a hardcore challenge, a themed adventure map, or just a break from the usual mob chaos, OnlyZombies delivers a distinct and surprisingly tense survival experience. Download OnlyZombies, set the gamerule, and see how different Minecraft feels when the undead are the only thing waiting in the dark.