Close
Close
Narrow Results
 Follow Your Favorites!
NotificationsSign in to get custom notifications of new products!













Product TypeGenreFormat
Core Rulebooks   Remove Search Term
Game Master Rule Guides   Remove Search Term
Science Fiction   Remove Search Term
PDF   Remove Search Term
Advanced Search

 
 Hottest Game Master Rule Guides, Science Fiction, PDF
 
 Hottest Community Game Master Rule Guides, Science Fiction, PDF
 
 Newest Titles in This Section
 
 Newest Community Created Titles in This Section
Products found in this section... Sort by: 
 Title    Publisher    Price ▲ 
A Slight Mistake - the RPG (GM's guide)

A Slight Mistake - the RPG (GM's guide)


For a few years now, I've been writing a series of novels set on a Dyson Sphere. Then the opportunity arose for me to run a game based upon them. I created a beespoke set of rules, based upon my own preferences and so I decided to put it out there and see if anyone else would like to play it. I've broken the rules into two books, the GM's guide and the Player's guide. Hopefully someone out there...   [click here for more]
Slight Mistake  Pay What You Want

Add to DriveThruRPG.com Order  
Big List of RPG Plots

Big List of RPG Plots


Over the last two decades, The Big List of RPG Plots has been cited, quoted, thanked and excerpted in articles for computer-game design, a book on Hollywood screenwriting, and more than a few pen-and-paper RPGs. I wrote it in 1993 as an article submission for Pyramid magazine (they rejected it). I later tried to shop it to Dragon and Shadis and others...   [click here for more]
Cumberland Games & Diversions   FREE 

Buy Now  
Esper Genesis Basic Rules

Esper Genesis Basic Rules


2018 Ennie Award Nominee for Best Free Game! A Vast Universe Awaits.... Galaxies at war, high-tech gadgets and weapons, robots, aliens, starfighters, and ancient machines with the power to shape reality - All of these make the core of Esper Genesis, powered by the 5th Edition rules of the world's greatest roleplaying game. Taking on the role of a galactic hero, you can forge your...   [click here for more]
Alligator Alley Entertainment   FREE 

Buy Now  
Fading Suns - Company of the Phoenix - Art and layout pack

Fading Suns - Company of the Phoenix - Art and layout pack


Art and Layout kit according to the guidelines for the Company of the Phoenix Use of layout elements from this set is only permitted for works published in the Company of the Phoenix. This publication must also include a copyright page with the following legal note. The following text must be included in your publication (and has to be added next to all other legal and copyright notes): This...   [click here for more]
Ulisses Spiele  Pay What You Want

Add to DriveThruRPG.com Order  
First Issues

First Issues


First Issues is a simple, playbook-based, superheroic storygame: using just a pocketful of change and your imagination, you can create your own comic book adventures featuring the eight superheroes provided, or you can even make up your own superhero. The documents provided include eight ready-to-play characters, a blank template for creating your own superhero and a brief guide...   [click here for more]
Groundhoggoth Games  Pay What You Want

Add to DriveThruRPG.com Order  
Gaming With Kids, Ranges, Flexibility, and Accessibility

Gaming With Kids, Ranges, Flexibility, and Accessibility


If you run a school, library, hospital, charitable, or social program that supports children, but are hard pressed on funding, reach out to me on twitter @ bebarce and I will work with you to get you a copies for free or at print/ship costs. I will also reach out on your behalf to companies that produce or sell accessories. The Gaming with Kids Guide is a direct...   [click here for more]
Go Nerdy  Pay What You Want

Add to DriveThruRPG.com Order  
Heroes Wear Masks, 5e D&D Version, Preview

Heroes Wear Masks, 5e D&D Version, Preview


Yep it is here, Super Heroes for 5e D&D.  Avalon is happy to be able to release to you great fans a 5e D&D version of our super hero RPG.  Now compatable with the 5e D&D system. Everything you loved about HWM, but now playable with the great grand daddy of RPGs, D&D. This preview offers you a quick look at one of the classesand some of the powers and a few other surprises. Avalon...   [click here for more]
Avalon Game Company   FREE 

Buy Now  
I Love the Corps: Classified Materials

I Love the Corps: Classified Materials


The Game Master's Guide for I LOVE THE CORPS, the role-playing game of Military Action, Science-Fiction and Horror. The United Colonial Marine Corps, on an average day, deals with interstellar criminals, pirates and Rebels, maybe the odd Mutant or runaway Psychic, keeping the Colonial Dominion safe from the scum of the galaxy... or at least who the Dominion tells them are scum....   [click here for more]
Psychic Cactus Games   FREE 

Buy Now  
Light Strikers Sage Commander kit 1

Light Strikers Sage Commander kit 1


Part of the "Adventure Pack 1" - Here is an action-packed mystery-lite adventure scenario for first time players in the world of Light Strikers. This book is for the Sage Commander (the Game Master). It is geared towards players new to TRPGs and being the game master.  The hero players will need the Hero upgrade kit 1 in order to play in this adventure. The Light Strikers RPG blends scifi, fantasy,...   [click here for more]
Code of Light Games   FREE 

Buy Now  
Megacity Mercenaries

Megacity Mercenaries


Title Play as elite criminals in a cyberpunk world steeped in satanic magic! This free rules-lite RPG book was made with care by a game master who loves cyberpunk-fantasy, and wanted quick and easy rules to play with! If you like the sound of high-tech heists with demons and dark magic, check it out now! Mix and match from 21 classes to create every kind of mercenary,...   [click here for more]
Miniroll Games  Pay What You Want

Add to DriveThruRPG.com Order  
Planet Nine 2D10 Setting

Planet Nine 2D10 Setting


For the new 2D10 RPG, Planet Nine is a chilling science fiction setting that pits Awakened heroes against an alien menace known as the Entity. Introducing a simple new attribute, the short, jam-packed setting provides a basic foundation for battles by outnumbered, overwhelmed heroes against aliens whose purposes are unclear. Can they reach Planet Nine? Can they unravel the mystery...   [click here for more]
Mystic Ages Publishing   FREE 

Buy Now  
Power Outage Adventure: Trading Spaces

Power Outage Adventure: Trading Spaces


POWER OUTAGE ADVENTURE: TRADING SPACES WARNING: This Adventure is already included in the back of the Power Outage Core Guide Book. The purpose of uploading this separately is due to the additional printable assets that can be found in the back of the adventure. Of course, the adventure can also be used as a setting for whatever system you wish to play. Synopsis: Robotic Henchmen are ransacking...   [click here for more]
Go Nerdy  Pay What You Want

Add to DriveThruRPG.com Order  
Power Outage Reference Guide

Power Outage Reference Guide


If you run a school, library, hospital, charitable, or social program that supports children, but are hard pressed on funding, reach out to me on twitter @ bebarce and I will work with you to get you a copies for free or at print/ship costs. I will also reach out on your behalf to companies that produce or sell accessories. The Power Outage Reference Guide is...   [click here for more]
Go Nerdy  Pay What You Want

Add to DriveThruRPG.com Order  
Resonant

Resonant


RESONANT is set in a far future world where Nanites have formed a hivemind and the world is stuck in a turbulent struggle for survival. Between the rise of mega-corporations like Arknet and Frostfire Dynamics, normal people have to deal with more influence on their life. In Paris, tensions are high between the immigrant British and the local Parisians. The United States have succeeded...   [click here for more]
LifeBan Games   FREE 

Buy Now  
Savage Rifts: Savaging Your Favorite Rifts® Ideas

Savage Rifts: Savaging Your Favorite Rifts® Ideas


There’s a whole Megaverse® out there to explore! This free, 15 page, PDF written by Sean Patrick Fannon with Clint Black and Sean Owen Roberson, aids the Game Master in translating her favorite ideas from the vast amount of material in Palladium’s Rifts® library into Rifts® for Savage Worlds. Rifts® and Megaverse® are Registered Trademarks of Palladium Books, Inc. All character...   [click here for more]
Pinnacle Entertainment   FREE 

Buy Now  
Seven Worlds pre-gen character: Amblin

Seven Worlds pre-gen character: Amblin


Meet Amblin, the newest iconic character for Seven Worlds! This proud Martian was the best explorer in human space until the fateful mission when her entire team mysteriously died, leaving her in a cryogenic emergency capsule for twenty years. Can this 67-year-old crippled "relic from another time", as she is disdainfully called, now rise above her challenges and show the...   [click here for more]
Intellistories   FREE 

Buy Now  
Seven Worlds pre-gen character: Takumi

Seven Worlds pre-gen character: Takumi


Meet Takumi, the newest iconic character for Seven Worlds! The brightest medical mind in the Seven Worlds may be an unhinged mind as well… but hey, seeing visions of horrifying monsters invading your planet will do that to you. Are these the ravings of an unhinged mind, or a psionic prophecy of the future? This free download contains the full biography and background...   [click here for more]
Intellistories   FREE 

Buy Now  
The ADVANCED (Playtest Edition)

The ADVANCED (Playtest Edition)


Ever wanted to use a system offering the customization you always wanted without being bogged down with endless options and rules? Ever wondered why everything is either a hit or miss in most systems? Well The ADVANCED: Pandemonium is what you are looking for. This system has full customization options to create not only the character but even the attacks to fully fit your character idea while allowing...   [click here for more]
Beirdo Games   FREE 

Buy Now  
The GameMaster's Apprentice: Universal Instruction Cards

The GameMaster's Apprentice: Universal Instruction Cards


Quick-Reference Cards for the GMA Decks! Note: If you wish to purchase the Print on Demand Instruction Cards to keep with your deck, be sure to combine your order of this product with the deck itself, or order two or more copies of the Instruction Cards! This mini-set is only six cards, and DriveThru will not print orders that small individually. The GameMaster's Apprentice decks...   [click here for more]
Larcenous Designs, LLC   FREE 

Buy Now  
Veil of Truth - Space Opera Campaign Primer

Veil of Truth - Space Opera Campaign Primer


In 2083, Humankind stumbled upon the truth: we are not alone. Worse: we were just another primitive species in a Galaxy much wider and complex than we could ever imagine. Veil of Truth - Campaign Primer is a FREE ebook that presents you with the universe of Veil of Truth, originally released as a Pathfinder compatible products back in 2012, part of an expanding transmedia series with novels, short...   [click here for more]
Eridanus Books   FREE 

Buy Now  
Vihan lapset -pelinjohtajan opas

Vihan lapset -pelinjohtajan opas


Vihan lapset on roolipeli dystooppisesta Suomesta maailmassa, jossa avaruusoliot ovat ottaneet vallan. ...   [click here for more]
Myrrysmiehet  Pay What You Want

Add to DriveThruRPG.com Order  
WARPS Character Sheet - Generic Classless d20

WARPS Character Sheet - Generic Classless d20


Character sheet for WARPS - Core Rules ...   [click here for more]
Wry Wyvern Editions   FREE 

Buy Now  
Taking the Narrative by the Tail: GM Intrusions & Special Effects

Taking the Narrative by the Tail: GM Intrusions & Special Effects


Great moments don't just happen on their own. GM intrusions offer an opportunity for the Numenera GM to really shine--and for the players to experience incredible turning points in their characters' stories. But how do you use this feature of the game to its fullest? Taking the Narrative by the Tail offers tips and techniques for great GM intrusions, as well as a sampling...   [click here for more]
Monte Cook Games  $0.79

Add to DriveThruRPG.com Order  
Die Screaming Director's Guide

Die Screaming Director's Guide


“Beneath the city of New York are living catacombs. An endless maze of subterranean tunnels. Unfit for anything human. And unlikely to bring anyone down there. So… They’re coming up.” - C.H.U.D.    Die Screaming is a love letter to horror cinema of the last four decades. Every game of Die Screaming begins with a supernatural apocalypse and characters...   [click here for more]
Bryan Rantala  $10.00 $1.00

Add to DriveThruRPG.com Order  
LatchKey - The Overseer's Handbook

LatchKey - The Overseer's Handbook


In the world of LatchKey, The Overseer guides their players through different scenarios. Learn the basic rules with The Overseer's Handbook and move your survivors through compelling stories. Written & Illustrated by Christopher Hopkins, and made possible by backers with Kickstarter. ...   [click here for more]
HIVEMIND Creative Concepts  $1.00

Add to DriveThruRPG.com Order  
X-plorers RPG Advanced Combat

X-plorers RPG Advanced Combat


X-plorers:  Advanced Combat The full advanced Combat rules by the creator of X-plorers RPG!  These rules are a direct reprint from the now out of print Galactic Troubleshooters magazine #1. "The rules presented in the X-plorers core rule book are kept purposely simple.  It is the author’s opinion that they give you everything you need...   [click here for more]
Dave Bezio's Grey Area Games  $1.00

Add to DriveThruRPG.com Order  
Komentosiltasimulaatio avaruuslaivaroolipeleihin

Komentosiltasimulaatio avaruuslaivaroolipeleihin


Tässä on avaruuslaivaroolipelien komentosiltasimulaatio jonka loin omaan tarpeeseeni Ropeconiin 2019. Vedin siellä Kalevalasta löytyvää "sammon ryöstön" tarinaa avaruuslaivaversiona. Tarvitsin järjestelmän joka simuloisi avaruuslaivojen komentosiltojen voimakkaan verbaalista kommunikaatiota ja hierarkiaa olematta liian monimutkainen ja vaikea ensikertalaiselle. Tutkittuani useita vaihtoehtoja,...   [click here for more]
Storycraftsman  Pay What You Want

Add to DriveThruRPG.com Order  
Quick! Act Human!

Quick! Act Human!


A comedic co-operative one page role playing game for three or more players. YOU ARE AN ALIEN You are an alien specializing in Advanced Human Studies. An important secret mission has been assigned to your team by your Grand Alien Superior. Failure is not an option. Each member of your team is to be teleported inside an individual Human on planet Earth. Once on Earth you...   [click here for more]
Leigh Carrthulhu  Pay What You Want

Add to DriveThruRPG.com Order  
New Gods for an Old Town

New Gods for an Old Town


In a world where superpowers have been with us for generations, four heroes have risen to the top of the heap in London, acting as its unofficial guardians, but each of the four pursues their own ends through their own means. Being on the same side of the law doesn't always mean working together and when it comes to the crunch, whose vision for the city will prevail? This is a...   [click here for more]
Groundhoggoth Games  Pay What You Want

Add to DriveThruRPG.com Order  
Daring Comics Spotlight #1: Teleportation

Daring Comics Spotlight #1: Teleportation


The Daring Comics Spotlight series focuses on powers, rules hacks, and character archetype concepts for the Daring Comics Role-Playing Game. Each spotlight issue is a small, easy to use PDF dedicated to a specific concept. In Daring Comics Spotlight #1: Teleportation, we take a look at different ways the teleportation power can be used in your series, and provide...   [click here for more]
Daring Entertainment  $1.50

Add to DriveThruRPG.com Order  
Daring Comics Spotlight #2: Powers Unleashed

Daring Comics Spotlight #2: Powers Unleashed


The Daring Comics Spotlight series focuses on powers, rules hacks, and character archetype concepts for the Daring Comics Role-Playing Game. Each spotlight issue is a small, easy to use PDF dedicated to a specific concept. In Daring Comics Spotlight #2: Powers Unleashed, we take a look at the Daring Comics powers system. It starts by breaking down why we used a point-build system...   [click here for more]
Daring Entertainment  $1.50

Add to DriveThruRPG.com Order  
Daring Comics Spotlight #3: Power-Armor

Daring Comics Spotlight #3: Power-Armor


The Daring Comics Spotlight series focuses on powers, rules hacks, and character archetype concepts for the Daring Comics Role-Playing Game. Each spotlight issue is a small, easy to use PDF dedicated to a specific concept. In Daring Comics Spotlight #3: Power-Armor we take a deeper look at how to build the power-armor power set. We give solid examples of how to reskin a variety of...   [click here for more]
Daring Entertainment  $1.50

Add to DriveThruRPG.com Order  
SPACE DUNGEON Book III: Voyages among the Stars

SPACE DUNGEON Book III: Voyages among the Stars


SPACE DUNGEON combines old-school feel with the vibe of Golden Age SF. It is a Science Fiction Role-Playing Game (SFRPG) standing proudly in the tradition of the Old School Revival (OSR) and is released under the terms of the Open Game License (OGL). It is my personal answer to the speculative question: "What would have happened had the authors of the Original Role-Playing Game...   [click here for more]
Furious Rabbit Productions  $1.58

Add to DriveThruRPG.com Order  
World of AEIOUS: The Æquipment Prospectus

World of AEIOUS: The Æquipment Prospectus


If you love anime, fantasy, and action then you will enjoy this. Whatever your favorite hero can do, you can emulate here to a close degree. All it needs is your imagination and daring adventurous passion. But it doesn't stop there, AEIOUS is a whole new place where you can create your own stories and carve your own legend in the wide, wild world.  The Æquipment Prospectus book...   [click here for more]
RAdV Creatives  $2.67 $1.79

Add to DriveThruRPG.com Order  
Merry Heistmas - An IDENTECO Adventure

Merry Heistmas - An IDENTECO Adventure


And IDENTECO adventure suitable for any group size or level. Also adaptable to any modern or sci-fi/cyberpunk setting. Merry Heistmas Punkers! Something's up and this year, it looks like Santa is not just bringing lumps of coal to naughty corps this year, Santa is robbing them blind! Time to head down and find out what's going on before the Corps merc Santa...   [click here for more]
Humanoid Games  $1.99

Add to DriveThruRPG.com Order  
2400: Emergency Rules

2400: Emergency Rules


2400 is a series of lo-fi sci-fi micro RPGs. Each is a self-contained game that fits on 3 pages and a cover, two sides of a letter-sized sheet of paper. They're all in the same setting, unless they aren't. And they're all are built with the same rules as the free 24XX SRD. These are the Emergency Rules. 2400 is designed to be ultra light, super...   [click here for more]
Pretendo Games  Pay What You Want

Add to DriveThruRPG.com Order  
Fragged Empire - Short Stories 1

Fragged Empire - Short Stories 1


A collection of short stories set in the Fragged Empire universe. Pg: 4-57, Rag Tag, by Stuart McNabb. Pg: 58-61, We Don't Wear Capes, by Adam Paciorek. Pg: 62-66, Valuable, by Chris Lites. ...   [click here for more]
Design Ministries  $2.00

Add to DriveThruRPG.com Order  
Fragged Empire Adventure - The Ghost Ship Carthage

Fragged Empire Adventure - The Ghost Ship Carthage


A free introductory adventure for Fragged Empire. At 03:13 hours standard Haven time, on Octo 14th 1005 AX, the Archon medical frigate Carthage issued a general distress call. At 5:05 hours on Octo 16th, Legion VESPER force Epsilon boarded the vessel. An hour later, the ship went silent, charted a course for deep space, and was never heard from again....   [click here for more]
Design Ministries  Pay What You Want

Add to DriveThruRPG.com Order  
Game Controller Supplement

Game Controller Supplement


This supplement gives you some great tools. The first is Campaign Qualities which can alter the feel of a session, an operation. For instance, the Bloody campaign quality reduces everyone's SP by on. There is a section for creating both Villains and goons; creating operations; net running, character awards and rewards; managing the table, this is good for first time GCs; and finally some random gear...   [click here for more]
GenIsys Games  $2.00

Add to DriveThruRPG.com Order  
In the Dark

In the Dark


What is this? In the Dark is a streamlined, multi-setting roleplaying game, based on the Forged in the Dark system. It allows you to play as a team of highly-skilled individuals operating on the fringes of law & society. You could be master thieves pulling casino heists, pirates raiding along the Spanish Main, or interplanetary bounty hunters roving the galaxy. Who is this for? Firstly, In...   [click here for more]
David Brunell-Brutman  Pay What You Want

Add to DriveThruRPG.com Order  
Suited: Playset Booster Pack #1

Suited: Playset Booster Pack #1


Suited: Playset Booster Pack #1 is the first expansion for the Suited Roleplaying Game, containing all that you need to play three brand-new playsets: Pelts – In Pelts you take on the role of Anthropomorphic animals that must set out on an epic quest to retrieve a lost relic of bygone heroes in order to save your home from the villainous hordes attacking it. The...   [click here for more]
Escape Box Games  $2.00

Add to DriveThruRPG.com Order  
Suited: Playset Booster Pack #2

Suited: Playset Booster Pack #2


Suited: Playset Booster Pack #2 is the second expansion for the Suited Roleplaying Game, containing all that you need to play in three brand-new playset worlds: Plunder – In Plunder you are the crew of an irreputable pirate ship that has suddenly found itself in possession of a valuable cargo, surrounded by a sea of trouble, trouble, and even more trouble.  The Plunder...   [click here for more]
Escape Box Games  $2.00

Add to DriveThruRPG.com Order  
Vaults of Vaarn #1

Vaults of Vaarn #1


The sun is dying and the wreckage of countless eons litters the parched wastes of Vaarn, the desolate country that common folk call the blue ruin. It is said that these sky-coloured sands hide the graves of the Autarchs; have swallowed the buried arcologies in which the true seed of humankind was preserved through the Great Collapse; conceal forgotten crypts of memory, decaying crystalline lattices...   [click here for more]
Graculus Droog  Pay What You Want

Add to DriveThruRPG.com Order  
Manuel de l'assassin

Manuel de l'assassin


Certains appellent cela exécution. D'autres, meurtre. Pour un petit groupe, il s'agit de justice. L'assassinat est l'un des jobs pour lequel on peut embaucher un runner. Et, voyez-vous, les gens ont tendance à être assez regardants lorsqu'il s'agit de leur propre vie. Mieux vaut donc être au top si vous souhaitez la leur ôter. D'autant plus si vous espérez faire carrière. Le Manuel de...   [click here for more]
Black Book Editions  $2.34

Add to DriveThruRPG.com Order  
BoP: Retrospace

BoP: Retrospace


NOTE: This product requires Blood of Pangea (available here) to play... It's the return of Retrospace, this time as a supplement to Blood of Pangea, our original narrative role-playing game in the pulp tradition! Science fiction was, without a doubt, the most popular of the pulp genres, imagining a technologically advanced future where mankind interacted with nonhuman races and explored incredible...   [click here for more]
Olde House Rules  $2.49

Add to DriveThruRPG.com Order  
Full of Heart - A Crystal Heart Expansion

Full of Heart - A Crystal Heart Expansion


Full of Heart is a companion to Crystal Heart, presenting ten (and a bit) new Crystals for use in your Crystal Heart adventures. While you can decide for any of the new Crystals that they're already available in Syn's repository, we recommend not to do so unless you have a cool plot in mind, since finding Crystals in the wild is usually more fun. The Crystals included here are called:...   [click here for more]
Up to Four Players  $2.50

Add to DriveThruRPG.com Order  
Robot Warriors to HERO System Current Editions

Robot Warriors to HERO System Current Editions


This work started it in the early 1990’s with the goal of using Robot Warriors mecha construction and combat rules with 4th edition Champions and the HERO System Rulesbook. It has been updated and enhanced to help you do the same—with any current edition of HERO! Convert Robot Warriors characters to the 4th, 5th, or 6th editions of the HERO System! Use Robot Warriors robot writeups—as is—in...   [click here for more]
Hero Games  Pay What You Want

Add to DriveThruRPG.com Order  
A-LIEN

A-LIEN


Gdr Fantascienza ULTRACOMPATTO dove il narratore può compensare con la sua fantasia ricreando una fantastica saga cinematografica. E giochi in 5 minuti, senza doverti studiare le pagine bianche di Milano Se il gioco ti è piaciuto accetto volentieri un caffè ...   [click here for more]
Qwein  Pay What You Want

Add to DriveThruRPG.com Order  
Subjugate

Subjugate


You may use the Subjugate setting with any rule set that you like or with the one provided within. Subjugate is a game of brutal politics and survival in our own solar system. Set in the year 2165 man kind pushes the limits of its technology teetering on the edge of the Fusion age and next age of human advancement. In 2035, man kind waged war, Nations fell, millions died. The threat of nuclear...   [click here for more]
Cgritts  $3.00

Add to DriveThruRPG.com Order  
Monsters Destroy All Cities

Monsters Destroy All Cities


The Kaiju movie was born in the 1950s.  Originally a Japanese creation, it was quickly adopted by American and British studios that imagined colossal, and often mutated, monsters attacking helpless human cities - and one another - in titanic struggles.  Now you can be part of the giant-sized fun with this rules-lite game of Kaiju encounters: Construct a battleground, perhaps your own hometown,...   [click here for more]
Olde House Rules  $3.49

Add to DriveThruRPG.com Order  
Displaying 1 to 50 (of 258 items) Result Pages:  1  2  3  4  5  6  [Next >>] 
Select Page Number