Cartographia Imperialis just got a major facelift — interactive 40K galaxy map

[sami3121]

A while back I shared an early version of my interactive Warhammer 40,000 galaxy map. I’ve since given the site a major facelift and wanted to share the updated version:

https://cartographia40k.com/

The biggest improvements are:

• A redesigned “Imperial chart-room” interface

• A fully interactive 3D galaxy that can be orbited, panned, and zoomed

• M41 Pre-Rift and M42 Era Indomitus views

• A more complete catalog of 99 worlds, regions, and anomalies

• Individual dossiers for each record, with overview text, timelines, status, faction details, and artwork

• Search and filtering across the archive

• Permanent dossier pages that can be shared directly

• Improved mobile layout and navigation

• Clearer marker symbols, labels, routes, and the Great Rift

The map is intentionally approximate. Different editions and official maps often disagree, and there isn’t a single canonical coordinate system for the galaxy, so I’ve tried to document uncertainty rather than present every location as definitive.

Planned improvements include expanding the catalog with more worlds and regions. One of the most requested features is custom Chapter worlds, which will let visitors create planets for their own armies and campaigns, with their own names, classifications, factions, and lore notes. That feature is still in development, but it’s the next major expansion I’m working toward.

I’d especially appreciate feedback from people who know the lore well:

• Are any placements obviously wrong?

• Are there important worlds or regions I should add?

• Are the M41/M42 distinctions useful?

• Do the dossiers feel accurate and appropriately cautious?

This is an unofficial fan-made project and isn’t affiliated with Games Workshop. Some of the dossier prose was AI-assisted ( I am not the best writer!) , but the core concept, research, map structure, base code, and placement decisions are my own.