The Hotness
Legacy of Dragonholt
Xanathar's Guide to Everything
Grey Star Book 2: The Forbidden City
Book 1: The War-Torn Kingdom
Heart of Ice
Silent Legions
Pathfinder Roleplaying Game Core Rulebook
The Great Pendragon Campaign
Player's Handbook (D&D 5e)
Mouse Guard Roleplaying Game Box Set
The Deep Forest
Storm King's Thunder
Kids on Bikes
Mouse Guard Roleplaying Game
The World of Greyhawk
In The Labyrinth
Delta Green
Dungeons & Dragons Basic Set (First Edition)
N1: Against the Cult of the Reptile God
Pathfinder Roleplaying Game Bestiary
Pathfinder Roleplaying Game GameMastery Guide
Tales Of The Fisherman's Wife
Blades in the Dark
Mouse Guard Roleplaying Game Boxed Set (Second Edition)
Maze of the Blue Medusa
Tales from the Loop
Torg Eternity
Raiders of R'lyeh Gothic Black & White Edition
English Eerie
Fate Plus (Issue 3 - Jan 2018)
B2: The Keep on the Borderlands
Trail of Cthulhu
Burros & Bandidos
Doctor Who Role Playing Game
Realm of Chaos: The Lost and the Damned
B10: Night's Dark Terror
T1: The Village of Hommlet
Alone Against the Dark (1st edition)
Tunnels & Trolls (7.5 Edition)
Pathfinder Roleplaying Game Bestiary 2
Pathfinder Roleplaying Game: Beginner Box
Dungeon Crawl Classics Role Playing Game
The Gentle Ladies' Tea & Monstrosity Destroying & Quilting Circle Auxiliary
Fate Core System
Monster Manual (D&D 5e)
Star Wars REUP (Revised, Expanded, Updated)
Out of the Abyss
Series Code
Mechanic Show More »
Production Staff
Year Published
Primary Name
Earth Delta Core Rules (Beta Release)
Alternate Names
 Customize View
xml RSS Feed 
Facebook Twitter Delicious Google
ObjectID: 98754
Pg. 1
Core Rules Beta 1e release
Year: 2011
Electronic (PDF, DOC, eBook, HTML, etc.)
384 pages
Size: Letter
Link Image
Beta 1 release
Year: 2010
Electronic (PDF, DOC, eBook, HTML, etc.)
359 pages
Size: Letter
Link Image
Beta 1c release
Year: 2010
Electronic (PDF, DOC, eBook, HTML, etc.)
429 pages
Size: Letter
Link Image
Description Edit | History

From "Beta 1e Core Rules" Introduction:

Earth Delta is a roleplaying game of adventure, action, excitement, and psychic mutant badgers. It is inspired by classic "post apocalyptic" role playing games, most especially older edition of Gamma World and Metamorphosis Alpha, but also draws considerably from films like "Wizards", comic books like "Kamandi", and 1980s cartoons like "Thundarr, The Barbarian". It is a game set in a world ravaged by war and now utterly transformed, a world where beasts walk on two legs and plot against humans, where plantmen walk side-by-side with robotic war machines, where even ordinary men and women can perform feats of extraordinary power. In this setting, you may face foes armed with everything from stone knives to high-tech death rays, you may battle simple bandits or gargantuan, lightning-breathing mutant crocodiles, you may explore ruined cities which reach across the horizon or slog through dense jungles. You may even look down on the ruined Earth from an orbital city, or find a sub-sea civilization still secure within its dome of synthetic diamond a foot thick.

While it draws stylistic inspiration from much older games, it uses rules from modern games... specifically, it is built on the rules for the Fourth Edition of Dungeons & Dragons, and this document assumes both possession of and familiarity with those rules, which are essential for play.

Earth Delta is designed to allow play in a variety of styles, from all-out gonzo to relatively serious. The nature of the rules system and the design choices mean that, regardless of style or tone, there will be a general focus on action, conflict, daring deeds, and dismal (but possibly hilarious) failures. It is possible to play campaign where a mutant rosebush shares genes with a spider and her allies are a rabbit obsessed with ancient science and a vicious robot nanny intent on "disciplining" any "naughty" enemies with a built-in sledgehammer, or you may have a campaign featuring only "normal" humans, struggling to survive and possibly rebuild the world. Earth Delta provides the rules; you decide how to apply them, how serious or silly you want to be.

This book contains the core rules, intended for players and DMs.


Here are the goals I set forth when I began this project in February 2010, having no idea just how long it would take to get to the Beta state. These goals have not changed, and I believe Earth Delta meets them all, to varying degrees of completeness. The goals of Earth Delta are:

  • Capture the spirit of old-style Gamma World, especially the first and second editions, and of the sources which inspired it or which seemed to draw inspiration from it: Hiero's Journey, Heinlein's Orphans Of The Sky, Metamorphosis Alpha, Kamandi, Thundarr, Wasteland, Fallout, and anything else with mutants and mayhem.
  • Create a game which is balanced and playable. This isn't a beer-and-pretzels game (though it can be) or one where you create "wacky" throwaway characters. Nor is it one where random luck determines if you're useful. One of the Unchanged is just as powerful as a winged grizzly bear with laser eyes.
  • Allow for the playing of winged grizzly bears with laser eyes.
  • Be balanced with standard 4e rules, so there's minimal work involved in taking creatures, or characters, from this game into D&D.

Mad? They dared to call me mad? Well, we'll see how it goes.

What you are holding in your hand... or, more probably, looking at on your screen... is the "Beta" version of the rules for Earth Delta. What this means is that the core mechanics are very unlikely to change. There has been some playtesting, and it's been determined things work well enough as a framework. What may change -- what almost certainly will change -- is small details, if an ability gives a +1 or a +2, if a power belongs in the third level or the seventh, if it should stun or daze, and so on.

This document focuses very heavily on the first ten levels of play, the "Heroic Tier". There is quite a bit of material which goes beyond that, especially in the form of higher-level mutations and technological items, but the Earth Delta is really only "complete" to level 10... there are very few monsters, class powers, paragon paths, and so on beyond this level. As the Beta becomes more solid, more higher-level material will be added, and of course players and DMs are free to make their own... and send it to me, if they wish, for possible inclusion.

More Information Edit | History
This page does not exist. You can edit this page to create it.
Thumbs Up
1 « Pg. {{module.params.pageid}} » {{data.config.endpage}}
No items found
{{product.numforsale}} for sale {{product.price}}
Thumbs Up
1 « Pg. {{module.params.pageid}} » {{data.config.endpage}}
No items found
{{item.title}} {{item.timeleft}}
Thumbs Up
1 « Pg. {{module.params.pageid}} » {{data.config.endpage}}
No images found
Thumbs Up
Category: Language:
1 « Pg. {{module.params.pageid}} » {{data.config.endpage}}
No videos found
{{video.numrecommend}} {{video.title}} {{video.language}} {{video.username|truncate:"10"}} {{video.numcomments}}
Thumbs Up
{{data.config.moduletitle}} Relationship:
[] [Forums »] [Post »] [Search »]
1 « Pg. {{module.params.pageid}} » {{data.config.endpage}}
No threads found
{{thread.numrecommend}} {{thread.subject}}
Last Post {{thread.lastpostdate|truncate:"10"}} Posted {{thread.postdate|truncate:"10"}}
{{thread.user.username|truncate:"10"}} {{thread.numposts-1}}
Thumbs Up
1 « Pg. {{module.params.pageid}} » {{data.config.endpage}}
No posts found
{{post.numpositive}} {{post.title}}
Title | Hot | Recent
[Browse »]  [Upload File »] Language:
Pg. 1 of 1
No Files Found.
Linked Items
Sort: Pg
Pg. 1
No Articles Found
Thumbs Up
[Browse »] [Summary »]
1 « Pg. {{module.params.pageid}} » {{data.config.endpage}}
No lists found
{{list.numpositive}} {{list.title}} {{list.username|truncate:"10"}} {{list.numitems}}
{{list.lastreplydate|truncate:"10"}} {{list.postdate|truncate:"10"}}
RPG Item Rank: N/A
Num Ratings: 0
Average Rating: 0.00
Standard Deviation: 0.00
Num Views: 321
GeekBuddy Analysis: Analyze
Similarly Rated: View
Avg. Game Weight: 0.0
Fans: 0
Personal Comments: 0
Users Owning: 1
Users Wanting: 0
Users Trading: 0 [find trade matches]
Price History: View
Total Plays: 0
Plays This Month: 0
Your Tags: Add tags
Popular Tags: [View All]
Thumbs Up
Web Links
Category: Language:
1 « Pg. {{module.params.pageid}} » {{data.config.endpage}}
No Web Links Found
Link {{cat}} {{lang}}
User Information
Use this tool to rate games, save comments, and manage your collection.
Front Page | Welcome | Contact | Privacy Policy | Terms of Service | Advertise | Support BGG | Feeds RSS
Geekdo, BoardGameGeek, the Geekdo logo, and the BoardGameGeek logo are trademarks of BoardGameGeek, LLC.