Oh My World

Turn mathematical expressions into world generation.

Oh My World is a mod that lets you define terrain with a powerful expression engine. Write formulas using arithmetic, trigonometry and 25+ built-in functions — and watch them become infinite custom landscapes.

What You Can Create

• Endless checkerboard patterns — alternating blocks in any grid size
• Mathematical function graphs — sine waves, circles, spirals rendered in blocks
• Layered 3D shapes — cyclic layers stacked with precision
• Randomised block pools — procedural variety with seeded determinism
• Anything you can express — one formula drives every block

More Than One World

• Every dimension is yours — give the Overworld, the Nether and the End their own formulas (or reuse one for another); dimensions you don’t write stay vanilla
• Optional world controls — per dimension, decide which structures generate, which biomes the world uses, and whether biome decoration appears
• Seed-driven — the same formula can produce a different world on every seed

How to Use

1. Create a new world → World tab → World Type → select Formula Generator
2. Click Customize to open the formula editor
3. Enter your formula, save it, and create the world — every chunk follows your rules

A complete formula writing guide (English & Chinese) is created on first launch; the editor shows where to find it. The editor also gives live error feedback and lets you save or load formulas from your computer. Dedicated servers can apply a formula through a simple config file.

For complex formulas, pairing with C2ME is recommended for faster world generation.

Compatibility

• Minecraft 1.21.1 – 1.21.11 and 26.1 – 26.3, on NeoForge / Fabric