Planet - Border teleport
Planet - Border teleport makes a flat world behave like a sphere by moving entities that cross a world border to the opposite side.
What it does
The NeoForge mod hooks entity movement events and checks coordinates on each tick. When an entity crosses a world border, it is moved to the far side: crossing the top edge places it at the bottom with the same X and Z, crossing the bottom edge places it at the top, and the left and right edges are linked on the same X axis. The transfer is instant and invisible to the player, and it covers players, mobs, items and arrows alike.
The default values, a 326-block offset on the Y axis, are set so that a 1:326 scaled map matches Earth's proportions. Other border sizes, such as a 1000 by 1000 map, need the values in the configuration file changed on both sides to match the actual border. The mod is server-side only, so players join without installing anything, and a server owner adds the jar to the mods folder, restarts, and the mod activates on its own.
The project is open source under the GNU Lesser General Public License v3.0 or later, and remixes are allowed provided the code stays open. Files are published for NeoForge 1.21.1 only, with version 1.0.0 as the single current build.
Key features
Opposite-side teleport
Entities crossing a world border are moved to the opposite side instantly and without visible effects.
Earth-scale mapping
The default 326-block offset matches a 1:326 scale map of Earth, so the flat world reads as a sphere.
Configurable border values
The configuration file accepts other border sizes, such as 1000 by 1000, to fit custom maps.
Automatic activation
Once the jar is placed in the mods folder and the server starts, the teleport works without further setup.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Teleport command in survival is server-side only, under the MIT License, and built for 1.21.1, so it handles player travel rather than border wrapping. Space Explore is a client and server mod for 1.21.1 under the MIT License, and it changes space content on both sides. FlexBorder is client and server, covers 1.21.1 – 1.21.11 and is not open source under All rights reserved, so it differs in license and version range from this mod.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Planet - Border teleport | NeoForge | 1.21.1 | Server-side only | 2026-07-27 |
| Teleport command in survival | NeoForge | 1.21.1 | Server-side only | 2026-07-18 |
| Space Explore | NeoForge | 1.21.1 | Client and server | 2025-11-23 |
| FlexBorder | NeoForge | 1.21.1 – 1.21.11 | Client and server | 2026-08-29 |
Questions
Does Planet - Border teleport need to be installed on the client?
Which Minecraft version does the mod support?
How is the border size changed?
Can the source code be reused?
In the catalog
Planet - Border teleport is one of 3,932 Transportation mods on ModsFinder, and one of 1,743 Transportation mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
Planet is a server-side mod (Fabric/Forge) that makes your flat map act like a sphere. Any entity (players, mobs, items, arrows) that crosses the world border is instantly teleported to the opposite side – top ↔ bottom, right ↔ left.
Official listing
- Modrinth page
- modrinth.com/mod/planet-border-teleport
- Owner
- Politota Project
- Published
- 2026-07-27
- Updated on Modrinth
- 2026-07-27
- Facts verified
- 2026-10-15