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Monster Geographica: UndergroundClick to magnify

Monster Geographica: Underground

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200 monsters from the depths of the earth, compiled from over a dozen sources, including 92 classic 3.0 monsters updated for a 3.5 game!

Welcome to Expeditious Retreat Press's newest line: Monster Geographica. The Monster Geographica books compile 200 monsters of specific terrains into one inexpensive resource. Collected from over 20 different sources, Monster Geographica books also provide an extensive array of challenge ratings and concepts.

Due to its organization, Monster Geographica is an ideal monster supplement for random encounters, adventure building, and campaign design. Unlike other monster books, Monster Geographica organizes monsters by challenge rating. Building a CR 5 encounter? All CR 5 monsters are right next to each other; no need to flip back and forth between a CR table and the monsters’ stat blocks. Need a random encounter level 7? Again, all CR 7 monsters are right next to each other. Don’t see one you like? Flip to the CR 5 monsters and pick two.

We also include an alphabetical table of contents with a listing of creatures by type and subtype (also arranged by challenge rating), making Monster Geographica books easy to use from many different approaches.

This PDF version has bookmarks by alpha, by challenge rating, and by type for maximum utility at the game table.

 Customers Who Bought this Title also Purchased
Reviews (7)
Discussions (0)
July 7th, 2010
A collection of OGC monsters from various products. Great if you are looking something very specific (in this case Underground) monsters, bad if you are looking for something bad new. The nicest feature of this book is that some older 3.0 monsters have [...]
Chris G. [Featured Reviewer]
March 31st, 2006
Monster Geographica Underground (MGU) is a PDF by Expeditious Retreat. They are best known for their PDF/Book a Magical Medieval Society: Western Europe. As with that they break new ground by offering a new type of monster book. MGU focuses on creat [...]
September 6th, 2005
A great collection of creatures. Great to see some 3.0 critters updated to 3.5. Very useful product with a nice layout that makes full use of the PDF format.<br><br><b>QUALITY</b>: Excellent<br><br><b>VALUE&l [...]
July 28th, 2005
I was very impressed with this work. There is a wide variety of monsters, and although some were banal or uninteresting there were lots of ones I could definitely use and a few I was tempted to base a campaign on. They are very easily and comprehensive [...]
March 19th, 2005
ERP has done a great job of compiling and updating a ton (ca 200) of underground monsters, and have made it available for an amazing price. I commend them for simplifying an adventure writer's life. The book is meticulously bookmarked alphabetically an [...]
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File Size:
3.27 MB
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These products were created by scanning an original printed edition. Most older books are in scanned image format because original digital layout files never existed or were no longer available from the publisher.

For PDF download editions, each page has been run through Optical Character Recognition (OCR) software to attempt to decipher the printed text. The result of this OCR process is placed invisibly behind the picture of each scanned page, to allow for text searching. However, any text in a given book set on a graphical background or in handwritten fonts would most likely not be picked up by the OCR software, and is therefore not searchable. Also, a few larger books may be resampled to fit into the system, and may not have this searchable text background.

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Original electronic format
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File Last Updated:
July 23, 2013
This title was added to our catalog on July 25, 2004.