CustomDimensions

Create, manage, and customize dimensions directly via in-game commands.

CustomDimensions is a lightweight Fabric mod for Minecraft 1.21.1 that gives server administrators full control over dimension creation. Forget complex datapack.. Generate new worlds, set their properties, and manage their rules dynamically in-game in seconds !

Features

• In-Game Creation & Management: Generate new worlds (Normal, Flat, Void) with random or fixed seed, configure and go in them in seconds.
• Multi-World Presets: Supports Overworld, Nether, End, and custom Cave types.
• Per-Dimension Rules: Per-dimension settings for keepInventory/ difficulty & per-dimension gamerules system, json config stored data.
• Persistence: All worlds and their weather/time states are saved automatically.

Commands /cd prefix for all commands:

/cd create <id> <type> <env> <seed> Create a dimension. Example: /cd create mining_world NORMAL CAVE random

/cd tp <id> Teleport to a specific dimension.

/cd setspawn Set the world spawn to your current location.

/cd info <dim> See real-time info (Time, Weather).

/cd difficulty <dim> <level> Set difficulty (peaceful, easy, normal, hard).

/cd weather <dim> <type> Force weather (clear, rain, thunder).

/cd gamerule <dim> <gamerule> <value> Change Gamerules in specified dimensions.

/cd time <dim> set <value>d/s/t Change time in specified dimension > d for day / s for seconds / t for ticks.

Configuration The mod saves all dimension data to "custom_dimensions.json" in your server's root folder. You can edit this file to modify specific internal values if necessary, though using in-game commands is recommended.