4DMC
by inayakitori
With 4DMC, players move through a fourth spatial axis, so a world that normally has three directions gains a fourth to explore and build in.
What it does
The mod adds a fourth spatial dimension, W, to the usual X, Y and Z axes of Minecraft. Movement is handled the way it is in three dimensions, with the keys for left, right, forward, backward, up and down, while W is reached through its own controls. The author describes the aim as a simulation of four-dimensional space, with time kept as the usual fourth coordinate, and plans to expand the feature set over time.
The mod runs on the client and on the server, so both need it, and it is built for Fabric on version 1.21.10 only. Its files are released under the GNU Affero General Public License v3.0 only, which makes it open source, and the source code and issue tracker are public. Cloth Config API and Fabric API are required, and the mod is not compatible with Lithium or Sodium.
Key features
Fourth spatial axis
A W coordinate is added beside X, Y and Z, so positions and movement have four components.
Slice-based viewing
The player sees one W slice of the world at a time, the way a flat observer would see only one cross-section of a cube.
Cube demonstration
A wireframe cube seen in slices shows how a four-dimensional shape appears when its 3D views are assembled in the mind.
Familiar controls
Movement uses the usual keys, extended to cover the added direction, so the mod does not require a new control scheme for basic motion.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Optional 1
Use cases
Exploring a fourth axis
Players who want to see how space looks with an extra direction can move along W and compare slices of the same area.
Teaching geometry
The slice view and cube demonstration can be used to explain how higher-dimensional shapes appear in lower dimensions.
Who it’s for: Players and server owners interested in higher-dimensional geometry who run Minecraft 1.21.10 with Fabric, Cloth Config API and Fabric API installed on both sides.
Questions
Does 4DMC need Fabric API and Cloth Config API?
Which game version does 4DMC support?
Can 4DMC be used with Lithium or Sodium?
Is the 4DMC source code available?
What the author says
So I've been working on a Minecraft mod which can simulate 4-dimensional space in Minecraft. When I say 4D, I mean 4 spatial dimensions + 1 temporal (time), as opposed to our real world, which is 3 spatial + 1 time (ignore string theory pedants). There are a few features in it right now, but I plan on expanding on…
Official listing
- Modrinth page
- modrinth.com/mod/4dmc
- Owner
- inayakitori
- Published
- 2025-12-18
- Updated on Modrinth
- 2026-01-16
- Facts verified
- 2026-10-15