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













GenreProduct TypeFormat
Fantasy   Remove Search Term
Core Rulebooks   Remove Search Term
PDF   Remove Search Term
Advanced Search >

 Featured Product
Fae Noir
by Green Fairy Games
Fae Noir $1 in April and May To celebrate the Fae Noir Comic Kickstarter coming in May 2017, the full Fae Noir tabletop RPG is only $1 during April and May! Set in the world of Fae Noir, the comic is a classic post-WWI immigrant tale about a goblin and a troll... featuring the undead and the invasion of Long Island by the creatures of faery.
Fae Noir
 
 Hottest Fantasy, Core Rulebooks, PDF
 
 Hottest Community Fantasy, Core Rulebooks, PDF
 
 Newest Titles in This Section
 
 Newest Community Created Titles in This Section
Products found in this section... Sort by: 
 Title    Publisher    Price  
Trailblazer

Trailblazer


The journey isn't over. . . It's just beginning. Bad Axe Games peels back the outer layers of the 3.5 rules and reveals the inner workings for all to see. Within this book, you'll find the keys to decoding the d20 rules and gain new insight into the mechanics of your game. Copious design notes detail the thought process behind every design change. Detailed introductory analysis of the "The Spine"...   [click here for more]
Bad Axe Games  $7.95 $4.95

Add to RPGNow.com Order  
Hoodoo Blues the Role Playing Game

Hoodoo Blues the Role Playing Game


On plantations, slaves cobbled together a powerful system of magic, learning to gain luck, manipulate minds and even to kill using common objects.   On lonely country crossroads, desperate people made bargains with the Devil for wealth, talent and power.   On the shores of Louisiana Bayous, under overhangs of spanish moss, free Blacks met to practice an ancient...   [click here for more]
Vajra Enterprises  $4.95

Add to RPGNow.com Order  
Earthdawn Rulebook (First Edition)

Earthdawn Rulebook (First Edition)


Before science, before history, there was an Age of Legend… For years humanity huddled in underground kaers, as the astral beings known as the Horrors ravaged the land in an orgy of terror and destruction. Now the long, dark age of the Scourge has passed, and brave adventurers emerge to reclaim their world. Elf, ork, t'skrang, human, and other wondrous races explore a world that teems with...   [click here for more]
FASA  $30.00 $18.00

Add to RPGNow.com Order  
Blood & Honor

Blood & Honor


After ten years, John Wick has returned to the world of samurai! Blood & Honor: Samurai Tragedy in Old Japan is a new way to tell stories of honor and steel! Blood & Honor includes: * 170 Fully Illustrated Pages * Rules for Creating Both Clans and Characters * Task Resolution that allows Player Narration * A New System for Duels and War * Magic and Religion from Old Japan * Streamlined...   [click here for more]
John Wick Presents  $19.95 $7.99

Add to RPGNow.com Order  
Swords and Wizardry Complete Rule Book

Swords and Wizardry Complete Rule Book


This book expands the Swords and Wizardry Core Rules (http://www.swordsandwizardry.com/) to cover all of the early phase supplements from the 1970’s. It creates a 1-volume resource allowing the players and game masters alike to create and run adventures and campaigns that will last for an entire lifetime. The game is supported by a vast array of adventures, and other resources that are produced...   [click here for more]
Frog God Games  Pay What You Want

Add to RPGNow.com Order  
Nobilis: The Essentials, Volume 1

Nobilis: The Essentials, Volume 1


There is a hidden world of spirit that surrounds us. Within that world dwell the Nobilis. They are creatures half-human and half-god. Each holds dominion over a single concept in the world. You have heard the stories and rumors of the Nobilis. You have heard of the fates of those who encounter them. Herein you will find a guide to dealing with these Powers and their attendant spirits. Herein...   [click here for more]
Eos Press  $49.95 $19.95

Add to RPGNow.com Order  
Totems of the Dead: Players Guide to the Untamed lands

Totems of the Dead: Players Guide to the Untamed lands


Know, noble reader, that before you lies a savage new world of sword and sorcery like no other. A terrible new age has dawned upon the Untamed Lands. The shining age of the ancestors is crumbling beneath a rising tide of blood and slaughter. Here lie the civilizations of the Untamed Lands, warring with their neighbors just to survive as their crops and game dwindle. The Skadians with their dragon-prowed...   [click here for more]
Gun Metal Games  $8.30

Add to RPGNow.com Order  
Legend

Legend


The Legend RPG - for just $1! Using the core rules from RuneQuest II, Legend is a new fantasy roleplaying game that serves as the basis for a multitude of settings and worlds. 100% compatible with all previous RuneQuest II books, including Elric of Melnibone, Deus Vult and Wraith Recon, Legend repackages the rules into a new digest-sized format. RPG fans will not be dissappointed in the...   [click here for more]
Mongoose  $19.99 $1.00

Add to RPGNow.com Order  
Mystic Empyrean Corebook

Mystic Empyrean Corebook


"No need to Justify. No need to Explain. We are as we are. Such is Becoming."   Download a free preview game of Mystic Empyrean    Empyrean lies in ruins. Covered by the devouring fog of Aether, it is only a matter of time before the world dies without the sustaining power of Grand Cornerstone. As an Eidolon--an immortal force of nature--your...   [click here for more]
Level 99 Games  $49.99 $14.99

Add to RPGNow.com Order  
Into the Fray - Core Rules

Into the Fray - Core Rules


Into the Fray is a print and play fantasy war-game. Into the Fray allows each player to take control of one of the factions of the Hundred Worlds. Each group attempting to uncover the secrets of the lost world of Gateway and crushing anyone who stands in their way. Designed so that each player will field between 15 and 20 figures in a standard battle, a game of Into the Fray will last about 2 hours...   [click here for more]
Moss Games   FREE 

Buy Now  
Adventurer Conqueror King System

Adventurer Conqueror King System


Your Journey from Adventurer to King Begins Now! Enter a world where empires totter on the brink of war, and terrible monsters tear at the fragile borderlands of men; where decaying cities teem with chaos and corruption, nubile maidens are sacrificed to chthonic cults and nobles live in decadent pleasure on the toil of slaves; where heroes, wizards, and rogues risk everything in pursuit of glory,...   [click here for more]
Autarch  $10.00

Add to RPGNow.com Order  
Empire of the Petal Throne (Original Manuscript)

Empire of the Petal Throne (Original Manuscript)


This is the original manuscript for Empire of the Petal Throne, produced in the Spring of 1974 in a limited and confidential run of fifty copies for the World of Tékumel, the creation of Professor M.A.R. Barker. This is the first time this original manuscript has been published or made available to the general public. The rules contained herein are a precursor to the game published...   [click here for more]
M.A.R Barker's World of Tekumel  $15.00

Add to RPGNow.com Order  
Arcane Codex Grundregelwerk

Arcane Codex Grundregelwerk


Mit dem preisgekrönten Arcane Codex Dark Fantasy Grundregelwerk (HC) erwarten dich auf 432 komplett farbigen Seiten: Eine freie, punktebasierte Charakterentwicklung mit einer großen Auswahl an individuellen Vorzügen und Schwächen. Erschaffe dir schnell und einfach deinen Lieblingscharakter mit nahezu unbegrenzten Möglichkeiten. Wähle unter den 10 sterblichen Rassen Kreijors...   [click here for more]
Nackter Stahl Verlag  $55.30 $18.42

Add to RPGNow.com Order  
A Song of Ice and Fire Roleplaying: A Game of Thrones Edition

A Song of Ice and Fire Roleplaying: A Game of Thrones Edition


A Game of Thrones Edition is the new core rulebook for A Song of Ice and Fire Roleplaying. Based on George R.R. Martin's fantasy epic, A Song of Ice and Fire Roleplaying gives you everything you need to play and run games in the Seven Kingdoms using an easy to learn system specifically designed to evoke the atmosphere of the best-selling novels and hit TV show. This edition includes...   [click here for more]
Green Ronin  $19.95

Add to RPGNow.com Order  
Historia Rodentia

Historia Rodentia


A complete setting for the Legend Roleplaying System, Historia Rodentia takes you to a world where animals go to war in a twisted version of the 19th Century. For fans of history or parody, Historia Rodentia provides a unique and rich setting that is easily expanded with your favourite historical events! In this sourcebook you will find: • A Campaign Setting for Brushfire’s regions of...   [click here for more]
Mongoose  $19.99 $11.99

Add to RPGNow.com Order  
DCC RPG Free RPG Day 2012

DCC RPG Free RPG Day 2012


DCC RPG Free RPG Day 2012 Return to the glory days of fantasy with the Dungeon Crawl Classics Role Playing Game. Adventure as 1974 intended you to, with modern rules grounded in the origins of sword & sorcery. Fast play, cryptic secrets, and a mysterious past await you: turn the page… Kick off a new generation of classic adventure with DCC RPG! This Free RPG Day module includes...   [click here for more]
Goodman Games  $4.99

Add to RPGNow.com Order  
Nights of the Crusades

Nights of the Crusades


“I’m in awe of this game. Really, the best comparison is Pendragon: it matches it in scholarship on the target subject, it matches it on a subtle, evocative blending of history and myth, it matches it in making what you feel matter as much as your abilities, and it matches it in opening up the classic idea of the long-term D&D campaign into a life-long story of time and tide, money...   [click here for more]
Aetheric Dreams  Pay What You Want

Add to RPGNow.com Order  
Fate of the Norns: Ragnarok -- Fafnir's Treasure

Fate of the Norns: Ragnarok -- Fafnir's Treasure


The sun and moon have disappeared from the sky. The worlds on the branches of the cosmic tree Yggdrassil have grown dark and cold. The gods and giants are on the brink of war. Mankind has descended into anarchy. Welcome to the Age of the Sword…. Welcome to Ragnarok! Fafnir's Treasure is a standalone Fate of the Norns: Ragnarok...   [click here for more]
Pendelhaven  $17.49 $14.99

Add to RPGNow.com Order  
OSRIC Pocket SRD (PDF)

OSRIC Pocket SRD (PDF)


Includes all Knights-n-Knaves errata through January 2013 This book represents a compilation of rules for old school-style fantasy roleplay gaming, and is intended to reproduce the underlying rules used in the late 1970s to early 1980s. A complete game manual in itself, this source reference document (SRD) includes everything the game master and player alike require for beginning...   [click here for more]
Usherwood Publishing   FREE 

Buy Now  
Adventures Dark and Deep Players Manual

Adventures Dark and Deep Players Manual


The Adventures Dark and DeepPlayers Manual contains all the rules you need to create and run a character; character classes, races, spells, rules for combat, equipment, social class, skills, and much more. The Players Manual is the first core rulebook for the Adventures Dark and Deep™ game, an expansion and revision of the original...   [click here for more]
BRW Games  $9.95 $8.26

Add to RPGNow.com Order  
Mechanical Dream: Dream Book

Mechanical Dream: Dream Book


Mechanical Dream is a world unlike anything you’ve ever experienced. On a huge planet, Naakinis, 10 races vie for survival under conditions no humans could ever hope to survive in one immense continent, encircled by impassable darkness: Kainas. On Kainas, reality bends and weaves, dreams and nightmares come true at night, ecosystems collide, and magic faces off with technology....   [click here for more]
SteamLogic  $19.99

Add to RPGNow.com Order  
Adventures Dark and Deep Game Masters Toolkit

Adventures Dark and Deep Game Masters Toolkit


The Adventures Dark and DeepGame Masters Toolkit contains rules for weather and other natural hazards, generating NPC characteristics, magic items, travel to other planes, deities and religions, and much more. It also includes scores of random tables covering everything from "what color is it?" to "why are the humanoids raiding the village?"...   [click here for more]
BRW Games  $9.95

Add to RPGNow.com Order  
Alfeimur Ambientazione Fantasy

Alfeimur Ambientazione Fantasy


L’Alfeimur è un'ambientazione dark fantasy disponibile per la 3a e la 5a edizione. Questa versione è per D&D 3.5, se sei interessato alla versione 5e vai a questa pagina. Alfeimur d20 si compone di due manuali, Alfeimur Ambientazione per giocatori e Master, Alfeimur Segreti e...   [click here for more]
L&A Media  $8.48

Add to RPGNow.com Order  
Lords of Gossamer & Shadow (Diceless)

Lords of Gossamer & Shadow (Diceless)


Your Player's choices and action are far more random than dice! Our world is but one of untold many, a flux of chance caught in the struggle between form and cacophony. Always, these forces are at war, shaping the infinite worlds. The immortal, self-appointed sovereigns of battle move between planes of reality with impunity: they are creators, shapers, and destroyers of worlds. In Lords of...   [click here for more]
Rite Publishing  $19.99

Add to RPGNow.com Order  
ATLANTIS: the Second Age

ATLANTIS: the Second Age


Atlantis: The Second Age, a tabletop role-playing game (RPG) of sword and sorcery fantasy. Atlantis is a sword and sorcery game inspired by the works of Fritz Lieber, Michael Moorcock, Robert E. Howard, and Clark Ashton Smith. Atlantis; a strange, wondrous and sometimes horrific antediluvian age where heroes survive...   [click here for more]
Khepera Publishing  $19.99

Add to RPGNow.com Order  
D&D Rules Compendium (4e)

D&D Rules Compendium (4e)


This handy and comprehensive Dungeons & Dragons book is intended as a quick rules reference. It contains the complete core rules for the 4th Edition Dungeons & Dragons Fantasy Roleplaying Game. In addition to providing an overview of the game and how it’s played, this book presents the core rules in a format that is easily referenced during a game. It includes information on level advancement,...   [click here for more]
Wizards of the Coast  $19.95 $9.99

Add to RPGNow.com Order  
Player's Option: Heroes of the Feywild (4e)

Player's Option: Heroes of the Feywild (4e)


Ready to explore your character's wild side? Player’s Option: Heroes of the Feywild enables players to weave elements of the Feywild into their existing and future characters, in much the same way that Player’s Option: Heroes of Shadow gave players reasons to explore their characters’ dark connections to the Shadowfell. This book contains exciting new character...   [click here for more]
Wizards of the Coast  $29.95 $14.99

Add to RPGNow.com Order  
Joan of Arc, Protocol Game Series 3

Joan of Arc, Protocol Game Series 3


Joan of Arc is a story roleplaying game about scientists and rescue personnel working to save a damaged space station before disruptive energy rips it apart. Starting from the planet’s surface, the team has limited time to get to the station, climb inside, and repair the damaged station. The clock is ticking as problem after problem besets the team members who have limited resources to battle...   [click here for more]
post world games  $2.99

Add to RPGNow.com Order  
Pure Steam Campaign Setting

Pure Steam Campaign Setting


In the age of steam, coal is king. The Pure SteamTM campaign setting is set in the age of steam, and is fully compatible with the Pathfinder Roleplaying Game. This book has everything you need to add some steam to your game. The Federated States of Ullera serve as the launching point for endless adventure. With Pure SteamTM, you can: Explore an entire campaign world not unlike...   [click here for more]
ICOSA Entertainment  $19.95 $9.95

Add to RPGNow.com Order  
Shaintar: Legends Unleashed

Shaintar: Legends Unleashed


This is the full book, complete with all Player and Game Master information for Heroic and Legendary play! Your Savage Worlds fantasy gaming experience grows to Heroic and Legendary levels with this highly-anticipated follow-up to Shaintar: Legends Arise. "The best campaigns are living campaigns. Things are happening everywhere, and your character, no matter the level of power, is a vital...   [click here for more]
Savage Mojo  $24.99

Add to RPGNow.com Order  
Insight RPG System Core Rulebook

Insight RPG System Core Rulebook


The Insight RPG System – The Ultimate Generic Role Playing Game System! Use the Insight RPG System in any realistic or semi realistic setting you’d like; it is customized to fit them all! Make one of your favorite books or movies into a living universe. The simple, yet versatile rules ensure that both the players and the GM are...   [click here for more]
NEVR  $19.95 $17.99

Add to RPGNow.com Order  
Pirates & Dragons Core Rulebook

Pirates & Dragons Core Rulebook


Pirates like gold. Dragons like gold. When the terrors of the sea meet the terrors of the sky, there’s bound to be trouble! They came from Albion, from Gaule and Esbania and Batavia, in search of the treasures of the New World. They found a menace older than mankind – dragons!   In their mountain lairs on the Dragon...   [click here for more]
Cakebread & Walton  $24.99

Add to RPGNow.com Order  
The Covetous Poet's Adventure Creator and Solo GM Guidebook

The Covetous Poet's Adventure Creator and Solo GM Guidebook


The Covetous Poet's Adventure Creator and Solo GM Guidebook is a supplement for roleplayers who would like to write their own adventures, or play their favorite roleplaying games solo. The first section of the book, the Adventure Creator, will guide you through the process of creating your own RPG storyline using a pre-prepared act structure. The Story Charts found in the middle of the book contain...   [click here for more]
Covetous Poet Publishing  $10.00

Add to RPGNow.com Order  
Lucien's Guide: The Black Files (Diceless)

Lucien's Guide: The Black Files (Diceless)


Come immerse yourself in the secret lore of the Grand Stair. Delve the secrets of the Lords of Gossamer & Shadow through the correspondence of Lucien, Lord of the Grand Stair, as he discusses evocative enigmas such as the Typhonian Event and the reappearing nemesis known as The Harbinger, and gain even more knowledge about his personal domain by visiting...   [click here for more]
Rite Publishing  $4.99

Add to RPGNow.com Order  
Pandora London

Pandora London


The story of Pandora is one of the most famous and well known of the Greek myths, a tale told to children to encourage them to behave. It is also a lie. One of the most carefully crafted pieces of fiction ever produced in order to hide a greater truth. Become a participant in a supernatural war that rages in secret throughout the city of London. Battle forces both magical and spiritual as you and...   [click here for more]
Cascade Studios   FREE 

Buy Now  
Aspects of Fantasy

Aspects of Fantasy


ASPECTS of FANTASY A fantasy roleplaying game that takes the familiar D20 rules system and updates it with rules and concepts from the popular Fate rules engine In Aspects of Fantasy you will find: A streamlined version of the D20 system Rules for using aspects and fate points with characters, equipment, adventuring parties, and creatures Quick character creation...   [click here for more]
IDD Company  $8.49

Add to RPGNow.com Order  
Mutants & Marvels 2.0

Mutants & Marvels 2.0


In Mutants & Marvels® you are the hero. You choose your destiny, and you have a hand in determining the fate of your world. In the spirit of the four-color comics that inspired these rules, you create a unique superhero, join forces with friends, and defend the innocent against all manner of threats. Mutants & Marvels® is a unique blend of “old school”...   [click here for more]
Tom Doolan  $6.99

Add to RPGNow.com Order  
DEADLY MISSIONS: 2econd Edition:  THE PORTAL

DEADLY MISSIONS: 2econd Edition: THE PORTAL


DEADLY MISSIONS: 2econd Edition: THE PORTAL takes the world of DEADLY MISSIONS to a whole new level of adventure! This high quality set of rules features some of our favorite artwork, as well as some new breath-taking images and photographs. As with all DEADLY MISSIONS games, The Portal...   [click here for more]
Grey Matter Games  $14.99 $5.00

Add to RPGNow.com Order  
OneDice Abney Park's Airship Pirates

OneDice Abney Park's Airship Pirates


Quick and easy rules for steampunk roleplaying in the world of Abney Park With a crew of drunken pilots We're the only airship pirates We're full of hot air and we're starting to rise We're the terror of the skies but a danger to ourselves OneDice Abney Park's Airship Pirates is a game of swashbuckling adventure set in 2150, following the Great Apocalypse...   [click here for more]
Cakebread & Walton  $10.00

Add to RPGNow.com Order  
Equinox Match System Guide (English)

Equinox Match System Guide (English)


In the dark night of a distant future, the shattered remains of Earth drift through the cold void of space. The shadows of the past have been driven away, and the dark clouds at the horizon appear to be man-made. After the Great Netherwar, which resulted in the destruction of Earth, mankind is restless, scattered across the void, bereft of its cradle. The Sol system became the last safe hideout...   [click here for more]
Vagrant Workshop  $24.95 $19.95

Add to RPGNow.com Order  
Winter Eternal

Winter Eternal


Winter Eternal is not a post apocalyptic setting. It's about what comes after the disaster, many years later when civilization is starting to thrive again. When the sun exploded, the continent of Ehlerrac survived the wave of flames because it was on the night side of the planet. Then the earthquakes and tsunamis hit and thousands died as cities fell and the landscape were torn apart. The dark world...   [click here for more]
Just Insert Imagination  $9.99

Add to RPGNow.com Order  
The Scarecrow, Protocol Game Series 34

The Scarecrow, Protocol Game Series 34


The Scarecrow is a story roleplaying game about isolation and superstition. Characters are children living in rural America all dealing with a local ‘legend’ about a Scarecrow, who may or may not be real. Based on the Cropsey myth on Staten Island or the Slender Man from the internet, this game plays upon misguided fears and preconceptions, creating an environment that is both unstable...   [click here for more]
post world games  $2.99

Add to RPGNow.com Order  
City of Judas

City of Judas


In this dark fantasy, sword&sorcery setting you are a member of the Brotherhood of the Iron Fist, a company of mercenaries who work in the shadows in the City of Judas. The setting focuses around an imaginary Jerusalem, heart of flaming religious crusades between the church of Christ and the cult of Judas, with the new sept of the Book of Q getting stronger each day. Which side...   [click here for more]
Dreamlord Press  $5.00

Add to RPGNow.com Order  
Clockwork: Dominion Core Rulebook

Clockwork: Dominion Core Rulebook


The World Turns. The Empire Falls. The Pontus Rises. Welcome to the Clockwork. The Clockwork: Dominion Roleplaying Game Core Rulebook Clockwork: Dominion is a steampunk roleplaying game set in a Victorian world of gothic horror. Players take...   [click here for more]
Reliquary Game Studios  $19.99

Add to RPGNow.com Order  
Victims of the Demon Lord: Starter Guide

Victims of the Demon Lord: Starter Guide


Fodder for the Demon Lord! The perfect introduction to Shadow of the Demon Lord™, this supplement provides you with everything you need to create a starting character for the game. Gathering up the first two chapters of the highly anticipated horror fantasy roleplaying, this product is aimed at helping new players create characters quickly and to give you a slim reference...   [click here for more]
Schwalb Entertainment  $6.66 $1.99

Add to RPGNow.com Order  
Aeon

Aeon


Aeon is a simple game of shared storytelling where two or more Players take on the roles of powerful Gods who, through cooperation and imagination, compete to produce the most memorable Creations, Heroes, and Myths. It can be played start to finish in a single setting. A great social game, it can be played with a family, friends, or as an excellent way to get to know new gamers....   [click here for more]
Arcana Games  Pay What You Want

Add to RPGNow.com Order  
Mouse Guard RPG 2nd Edition

Mouse Guard RPG 2nd Edition


Written by Luke Crane, David Peterson; illustrated by David Petersen.   320 pages; full color For Mouse Guard fans who own the original Mouse Guard Roleplaying Game Box Set, or anyone who'd like to enlist in the Mouse Guard for the first time, the second edition of the rule book is available separately as a PDF with all-new art from David Petersen....   [click here for more]
Archaia Entertainment LLC  $34.99 $19.99

Add to RPGNow.com Order  
WITCH: Fated Souls

WITCH: Fated Souls


You are a member of the Fated. An entire new world has opened up to you. This new world is filled with different planes to explore, each more beautiful and terrifying then the next. It has magical creatures, beasts woven from dreamstuff and monsters wrapped in nightmares. It is filled with a deep and beautiful history, some which only seems like a fairy tale. Your world will never be the same....   [click here for more]
Angry Hamster Publishing  $14.99 $7.99

Add to RPGNow.com Order  
Mystic Forces Second Edition

Mystic Forces Second Edition


You are Shinkai, gifted with the ability to control the five Mystic Forces with which you can learn the art of conjuring to do battle with your enemies. Learn the art of enchanting and harness the powers of the Mystic Forces to create your own magical items, or transform yourself into a Dragonknight; a powerful dragon-like creature capable of flying and performing lethal breath attacks. It is now...   [click here for more]
Noble Quests  $18.99

Add to RPGNow.com Order  
Wyrd Chronicles - Ezine - Issue 21

Wyrd Chronicles - Ezine - Issue 21


Hey Wyrdos. Check out the newly released Wyrd Chronicles Vol. 21! · Forged in Darkness: Aionus visits Plague · Creating a TTB Adventure: A helpful guide for Fatemasters · Fun with Scheme Markers: Win more games by (1) Interacting with this article! · The Fickle Whims of Time: An Aionus-themed Malifaux scenario · My Very...   [click here for more]
Wyrd Miniatures   FREE 

Buy Now  
Displaying 201 to 250 (of 3157 items) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9 ...  [Next >>] 
Select Page Number