A climate-driven worldgen mod for Minecraft (Fabric 1.21.11)
by Peetsa (Julia)
Latitude reimagines Minecraft world generation by organizing biomes along realistic climate bands — from steamy equatorial jungles to frozen polar ice sheets, and everything in between. Instead of the vanilla random patchwork, Latitude creates worlds that make geographic sense, where temperature, humidity, and elevation work together to place biomes where they belong.
The result: worlds that feel cohesive, immersive, and explorable — where heading north actually means heading into colder territory.
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Current Release: v1.2.5 (beta) · In Development: v1.3 "Cohesion Update"
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The v1.2.x series established the core latitude-band system and proved the concept works. Now, v1.3 — codenamed "Cohesion Update" — is all about refinement. The goal is to eliminate visual artifacts at band boundaries, smooth transitions between climate zones, and make the world feel like a single continuous landscape rather than a set of discrete stripes.
This is the biggest update yet — what was originally scoped as v1.2.6 grew into a full milestone as improvements compounded.
Here's what's been resolved heading into 1.3:
| Issue | What Happened | Status |
|---|---|---|
| Checkerboard boundaries | Grid-aligned artifacts (16×16 blocks) along band edges created an obvious tiled look | ✅ Fixed |
| Forest blob contamination | Temperate forest patches leaked into savanna and arid zones | ✅ Fixed |
| Swamp overpopulation | Swamps appeared far too frequently in tropical regions and arid zones. | ✅ Fixed |
| Mangrove regression | Mangrove swamps appeared inland and at high elevations after a tag/predicate change | ✅ Fixed |
| East–West haze rendering | A fog/overlay glitch along the east–west storm wall boundary | ✅ Fixed |
| First-load message | Added a message: ‘Latitude is preparing your world for the first time. Subsequent loads will be much faster,’ on the loading screen of a new world. | ✅ Improved |
These are the active items on the workbench right now:

Fixing the banding is one of the main objectives. This is the current state of world generation as of 1.2.5-beta