DatapacksJava
Border Expansion
A datapack that slowly expands the World Border whenever players are online, then pauses its expansion when players leave
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
A datapack which wlowly expands the World Border whenever players are online, then pauses its expansion when players leave.
Currently, the border is set to 128x128 blocks when the datapack first loads. It then expands depending on the number of players online:
- 0 players online: no expansion
- 1 player: no expansion
- 2 players: expands by 0.000111 blocks / tick = 8 blocks / hour
- 3+ players: expands by 0.000222 blocks/tick = 16 blocks / hour
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.11, 26.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
Verified by MCModsHub
- Downloads as borderexpansion.zip
- Download size: 6 KB
- Download link checked 7 Sept 2026 — working
These come from our own check of the pack file, not from the source page.