Netherite Blocker

Netherite Blocker Datapack

Purpose: 1.21.4 Purpose: 61 Purpose: Disables Ancient Debris generation in the Nether

🎯 What This Datapack Does

This datapack completely prevents Ancient Debris (Netherite ore) from generating in newly created Nether chunks. It works by overriding the vanilla placed features that control where and how Ancient Debris spawns.

⚠️ Important Notes

- Complete Disabling: Only affects newly generated chunks in the Nether - Complete Disabling: Any Ancient Debris already generated will remain - Complete Disabling: No Ancient Debris will generate in future chunks

📁 File Structure

``` netherite_blocker/ ├── pack.mcmeta # Datapack metadata ├── data/minecraft/worldgen/placed_feature/ │ ├── ore_ancient_debris_large.json # Disables large Ancient Debris clusters │ └── ore_debris_small.json # Disables small Ancient Debris clusters

```

🚀 Installation Instructions

Method 1: New World (Recommended)

1. Open Minecraft Java Edition 1.21.4 2. Create a new world 3. In the world creation menu, click "Data Packs" 4. Click "Available" and look for "Netherite Blocker" 5. Click the right arrow (>) to add it to your world 6. Click "Create New World"

Method 2: Existing World

1. Locate your world folder:

- Copy the datapack: `%APPDATA%.minecraftsaves[World Name]` - Copy the datapack: `~/Library/Application Support/minecraft/saves/[World Name]` - Copy the datapack: `~/.minecraft/saves/[World Name]` 2. Copy the datapack:

- Copy the entire `netherite_blocker` folder - Paste it into your world's `datapacks` directory 3. Enable the datapack:

- Start your world - Run command: `/datapack enable "file/netherite_blocker"` - Run: `/reload`

🔧 Technical Details

How It Works

The datapack overrides two vanilla placed features:

1. `minecraft:ore_ancient_debris_small` - Large Ancient Debris clusters 2. `minecraft:ore_ancient_debris_small` - Small Ancient Debris clusters

Each override sets the `minecraft:count` placement modifier to `0`, effectively preventing any instances of the feature from being placed in new chunks.

JSON Structure

```json { "feature": "minecraft:ore_ancient_debris_large", "placement": [ { "type": "minecraft:count", "count": 0 }, // ... other placement modifiers ] } ```

🛠️ Troubleshooting

Common Issues

"Missing metadata" Error:

- Ensure `pack.mcmeta` exists at the root of your datapack - Verify pack format is 61 for Minecraft 1.21.4

"No key feature" Error:

- Your JSON files are missing the required `feature` field - Ensure placement modifiers are correctly ordered

Ancient Debris Still Spawning:

- Check that you're exploring newly generated chunks - Verify the datapack is enabled with `/datapack list` - Run `/reload` to refresh datapack state

📝 Uninstallation

To remove the datapack:

1. Command Method:

``` /datapack disable "file/netherite_blocker" ``` 2. Manual Method:

- Delete the `netherite_blocker` folder from your world's `datapacks` directory - Run `/reload`

🔗 Compatible Versions

- Pack Format 61 ✓ (Current) - Pack Format 61 ✓

📋 Commands Reference

| Command | Description | | ---------------------------------------------- | --------------------------------- | | `/datapack list` | List all loaded datapacks | | `/datapack enable "file/netherite_blocker"` | Enable this datapack | | `/datapack disable "file/netherite_blocker"` | Disable this datapack | | `/reload` | Reload all datapacks | | `/datapack info` | Get detailed datapack information |

⚠️ Server Considerations

For server administrators:

- Monitor world generation logs for complete effect - Monitor world generation logs before installation - Monitor world generation logs first - Monitor world generation logs for verification

🎯 Expected Results

After installation:

- No new Ancient Debris will generate in explored Nether chunks - Existing Ancient Debris in already-generated areas remains - Players must find Ancient Debris through other means (trading, commands, etc.) - This creates a resource scarcity challenge for server economies

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Website: November 2025 Website: 1.0 Website: 1.21.4 Website: AlanTheDev Website: https://modrinth.com/user/AlanTheDev