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Hollow World
Player Characters in the Hollow World
Almanac Entries
Campaigning in the Hollow World UPDATED
Maps UPDATED
History
Personalities of the Hollow World
Groups and Societies
Immortals and Churches
Races of the Hollow World
Military
Adventures and Campaigns
Items
Player Characters in the Hollow World
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How can we balance non-armour cultures in OD&D Hollow World - The Tribal Warrior by John Walter Biles from The Piazza posted 5 July 2008.
Campaigning in the Hollow World
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The Sylvan Highlands: Emerald Roof Valley by WingofCoot, from The Piazza posted 8 December 2024. NEW
The Sylvan Highlands: The Westryn in the Hollow World by WingofCoot, from The Piazza posted 7 December 2024. NEW
The Sylvan Highlands: Animals & Monsters in the Sylvan Highlands by WingofCoot, from The Piazza posted 6 December 2024. NEW
The Sylvan Highlands: Westryn Vales by WingofCoot, from The Piazza posted 5 December 2024. NEW
The Sylvan Highlands by WingofCoot, from The Piazza posted 5 December 2024. NEW
Possible Savage Coast Related Realms in the Hollow World by Andrew Theisen, from The Piazza posted 23 October 2024. NEW
The Spell of Preservation is the Power of Urt by Håvard, from The Piazza posted 7 November 2021.
Places in Tír na nÓg by Cab Davidson, from The Piazza posted 23 August 2021.
The Mystical Floating Island of Tír na nÓg by Cab Davidson, from The Piazza posted 23 August 2021.
Hollow World Physics and Structure by Lance Duncan, from The Piazza posted 19 June 2021.
Crafting Rules for the Hollow World by Håvard, from The Piazza posted 1 May 2021.
Mogreth in the Hollow World by Geoff Gander, from The Piazza posted 19 March 2021.
Alphatian colonial Kingdoms in the Hollow World by Pol Ginés, current as of 25 October 2020.
Common Mounts in the Hollow World by Håvard from The Piazza posted 17 September 2019.
Consequences of Floating Continents and the Hollow World Sun by Robin, from The Piazza posted 13 May 2019.
What Everyone knows about Floating Continents - Nithians by Robin, from The Piazza posted 9 May 2019.
What Everyone knows about Floating Continents - Azcans by Robin, from The Piazza posted 9 May 2019.
Hollow World Physics and Structure by Lance Duncan, from The Piazza posted 21 April 2019.
The Dravish Drylands - Mini Gazetteer by Steven B. Wilson, from The Piazza posted 2 March 2019.
Spell of Preservation/Cultural Pride in D&D 5E by Håvard from The Piazza posted 26 February 2019.
Realms not in the HW boxed set by Håvard from The Piazza posted 21 July 2017.
Cave Paintings: Books of the Ancients by Håvard from The Piazza posted 8 August 2016.
Who’s Who in the Wyrmsteeth part 2 by Francesco Defferrari, from Threshold Magazine issue 9 dated 21 September 2015.
The Lighthouse’s guide to Unknown Cultures by Francesco Defferrari, from Threshold Magazine issue 9 dated 21 September 2015.
Before the Hollow World by Håvard, from Threshold Magazine issue 9 dated 21 September 2015.
Kingdom of Braejr and the Radiant Vale by Håvard from The Piazza posted 9 July 2015.
Barrik's Vale aka Valley of the Eternal Sun by Håvard from The Piazza posted 9 July 2015.
Rethinking Cultural Bias by Andrew Theisen, from The Piazza posted 25 December 2011.
Thonian Blackshirts by Håvard from The Piazza posted 14 December 2011.
Radiant Valley: Radiance Based Country in the Hollow World by Håvard, Geoff Gander and DJ Hartel from The Piazza posted 21 October 2011.
Pre-Literate and Alternative Spellbook Options by Andrew Theisen, from The Piazza posted 3 September 2010.
Hollow World Barter System/Alternate Economies by Andrew Theisen, from The Piazza posted 3 September 2010.
Paths to Immortality in the Hollow World by Andrew Theisen, from The Piazza posted 23 August 2010.
Floating Continents by Andrew Theisen, from The Piazza posted 4 August 2010.
Thoughts on the Anathy Archipelago by Andrew Theisen, from The Piazza posted 30 July 2010.
Populating the Hollow World: Immortal Action by Andrew Theisen, from The Piazza posted 23 May 2009.
Mogreth in the Hollow World by Geoff Gander, from The Piazza posted 7 April 2009.
Cultural Bias and the Spell of Preservation by Ashtagon, from The Piazza posted 26 February 2009.
The Engloutis Archipelago by Håvard, from the Mystara Mailing List posted 17 March 2007.
Cultural bias for Hollow World cultures by Herzog from the Mystara Message Board posted 10 September 2005.
Hollow World 3.5 race conversions by Gary Davies from the Mystara Mailing List posted 24 March 2005.
Alternate Hollow World Trade Languages by Giampaolo Agosta from the Mystara Mailing List posted 2 September 2001.
About Hollow World Creatures by Jeff Querner current as of 6 June 2001.
Key to the Hollow World (a short story to illustrate a theory) by David Knott, from the Mystara Mailing List posted 18 May 2000.
Xanthipon's Chthonolabe: a Device to Calculate Hollow World Shadowfall. An Excel7 file by Martin Edwards, current as of 19 March 1998.
News of the Hollow World by Frederick Weining, from the AOL Mystara Message Board posted 15 December 1995.
Maps
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The Sylvan Highlands: Map by WingofCoot, from The Piazza posted 7 December 2024. NEW
Oostdok by 2punti, from The Piazza posted 6 November 2024. NEW
Replica map of Ashmorain, 2 miles per hex from HWA2 by Thorfinn Tait, from the Atlas of Mystara current as of 1 May 2022.
Southern Polar Opening: replica of the course map from Voyage of the Princess Ark Part 8, Dragon 161 by Thorfinn Tait, from the Atlas of Mystara current as of 6 January 2022.
Thibault’s Iciria, 40 miles per hex by Thorfinn Tait, from the Atlas of Mystara current as of 10 July 2021.
Replica map and scaled adaptation of the Hollow World from the Hollow World Campaign Set by Thorfinn Tait, from the Atlas of Mystara current as of 5 January 2021.
Replica map of Southern Iciria, 40 miles per hex from the Hollow World Boxed Set by Thorfinn Tait, from the Atlas of Mystara current as of 1 November 2020.
Replica map of Northern Iciria, 40 miles per hex from the Hollow World Boxed Set by Thorfinn Tait, from the Atlas of Mystara current as of 1 November 2020.
Hand drawn map of northeastern Iciria: colour, black and white by Pol Ginés, current as of 24 October 2020.
Updated map of Hollow World, 40 miles per hex by Thorfinn Tait, from the Atlas of Mystara current as of 28 March 2018.
Maps of Iciria, 40 miles per hex by Thorfinn Tait, from the Atlas of Mystara current as of 25 February 2016.
Reprojected maps of the Hollow World by Thorfinn Tait, from the Hollow World Facebook group posted 9 July 2015.
Hollow World: World Map, non-hex by Thorfinn Tait, from The Piazza posted 2 April 2009.
Hollow World Planetary Map by Håvard, from The Piazza posted 7 June 2008.
Hollow World maps by Håvard, from the Mystara Message Board posted 17 November 2005.
History
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Hollow World Timeline by Andrew Theisen, from the Mystara Mailing List posted 24 June 1999.
Hollow World Personalities
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Hollow World Known Personalities.
Immortals and Churches
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Immortals from the Hollow World by combatmedic, from The Piazza posted 28 May 2014.
Reconciling Urth and the Hollow World by Kheldren from the Mystara Message Board posted 2 May 2004.
Adventures and Campaigns
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Adventure Seed: Secret of the Dinosaur Graveyard by Håvard from The Piazza posted 2 December 2011.
Quauhnahuac by Gilles Leblanc, current as of 29 May 2001.
Hollow World Adventure by Gilles Leblanc, current as of 15 May 2001.
Fleshing out Mystery in Aegos by Gilles Leblanc, from the Mystara Message Board posted 26 April 2001.
Items
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Unusual Weapons, Armor and Equipment of the Hollow World by Håvard from The Piazza posted 9 February 2020.