Hollow World Set Hollow World Planetary Map
The Hollow World Campaign Set did not just provide a revolutionary map of the Outer World; as the name indicated, it also presented a companion map of the world’s inner surface: the Hollow World.
As this was a brand new addition to the setting, and the first (and indeed only) world map of this inner land, it did not suffer from the same problems that plagued the Outer World map. This was a wholly new set of continents, with no prior work to fit in.
On the other hand, the map itself wasn’t entirely without its problems. First and foremost, it did suffer from the same lack of precision as the Outer World, with an inconsistent grid and a couple of art errors (Lake Chitlaloc and the Malpheggi Swamps). The set also included both hex maps of Northern and Southern Iciria as well as maps of the polar openings, inside and out. None of these line up quite perfectly with the world map, although the problems are minor compared with the Outer World.
The map presented below is not a 100% reproduction of the original map, but rather an adjusted replica. I have attempted to correct issues stemming from the lack of precision computer tools in its original creation. The original was primarily a piece of art; these adjustments aim to preserve this while bringing it closer to being an internally consistent map.
Adjustments include:
- Grid — The original grid was inconsistently spaced. The map, and particularly the western hemisphere, has been stretched slightly to correct this. The map has been conformed to fit a true Robinson projection grid, and the grid drawn anew.
- Labels — In order to fix the grids, the labelling had to be completely removed and redone. The original used faux italics, but this adjusted replica uses true italics.
- Scale — The nominal and actual scales (i.e. the labelled scale vs. the Atlas calculated scale) have been marked.
- Terrain — To fill the gaps left by removing the type and grid, terrain has been painted in.
Since all of the grids and labels had to be removed to create this adjusted replica, a blank version of the map is also available below.
Adjusted Replica Map (November 2025)

Blank Adjusted Replica Map (November 2025)

Sources
- Hollow World Campaign Set (1990) (PDF at DriveThruRPG)
- Poster map 3 (Cartography by David C Sutherland, David S LaForce, Dennis Kauth, Frey Graphics)
Chronological Analysis
This is Map 148. It was published in August 1990. The updated version of this map has not yet been released. See also Appendix C for annual chronological snapshots of the area. For the full context of this map in Mystara’s publication history, see the upcoming Let’s Map Mystara 1990.
The following lists are from the Let’s Map Mystara project. Additions are new features, introduced in this map. Revisions are changes to previously-introduced features. Hex Art & Fonts track design elements. Finally, Textual Additions are potential features found in the related text. In most cases, the Atlas adopts these textual additions into updated and chronological maps.
Under Construction! Please check back again soon for updates.
Additions
- XXX —
Revisions
- Spelling — Kubbitts is a misspelling of the Southern Iciria map’s Kubitts. The text confirms that the intended spelling is Kubitt.
Hex Art & Fonts
- Hex Art —
- Fonts — Garamond.
Textual Additions (Hollow World Set, August 1990)
- XXX —






