Below is the current list of game systems. You may use your own but it is strongly recommended you utilise one of the following as this is the list from which GMs select and users search from. You may append or prepend if you wish to add extra information, but do not alter the core text.
- 13th Age
- 1_PG
- 2300 AD/Traveller 2300
- 2d20 System
- 3 BONES
- 7th Sea
- 7th Sea d20/Swashbuckling Adventures
- A Game of Thrones
- A Song of Ice and Fire
- A-State
- Aberrant (original)
- Aberrant d20
- Achtung! Cthulhu
- Advanced Dungeons & Dragons
- Advanced Dungeons & Dragons 2nd Edition
- Advanced Fighting Fantasy
- Adventure (original)
- Adventure d20
- Adventurer, Conqueror, King
- After the Bomb
- Aftermath
- Against the Darkmaster
- Age of Sigmar: Soulbound
- AGE System
- Agon
- Alien: The Roleplaying Game
- All Flesh Must Be Eaten
- All the Days of My Children Hospital
- Alternity
- Amber - Guardians of Order
- Amber Diceless Roleplaying - Phage Press
- Anima
- Apes Victorious
- Apocalypse World
- Armageddon
- Army of Darkness
- Arrowflight
- Ars Magica
- Artesia: Adventures in the Known World
- Ashen Stars
- Astonishing Swordsmen & Sorcerers of Hyperborea
- Atlantis: The Second Age
- Atomic Highway
- Authority
- Avatar Legends: The RPG
- Babylon 5, d20
- Barbarians of Lemuria
- Bare Bones Fantasy
- Basic Fantasy RPG
- Basic Roleplaying
- Bat-Winged Bimbos from Hell
- Battlefleet Gothic
- Battlelords of the 23rd Century
- Battlestar Galactica
- Battletech
- Beast: The Primordial
- Beat to Quarters
- Beyond the Supernatural
- Beyond the Wall and Other Adventures
- Big Breasts, Small Waist
- Big Eyes, Small Mouth
- Big Eyes, Small Mouth, d20
- Black Crusade
- Blades in the Dark
- Bliss Stage
- Blood & Honor
- Blood Bowl
- Blue Planet
- Board Game
- Boot Hill
- Brave New World
- Brawn, Ego, Extraneous, and Reflexes
- Broken Compass
- Broken Gears
- Bubblegum Crisis
- Buffy the Vampire Slayer
- Bunnies and Burrows
- Burning Empires
- Burning Wheel
- Bushido
- Byron Falls
- Call of Cthulhu 6 the Edition
- Call of Cthulhu 7e
- Call of Cthulhu d100 rules
- Call of Cthulhu d20 rules
- Call of Cthulhu version 5.5
- Capes
- Card Game
- Cartoon Action Hour
- Casting the Runes
- Castle Falkenstein (R Talisorian Games)
- Castles and Crusades
- Cat: A Little Game About Little Heroes
- Champions
- Changeling: The Dreaming
- Changeling: The Lost
- Chill
- Chivalry and Sorcery
- Chronicles of Darkness
- City of Mist
- CJ Carella's WitchCraft
- Colonial Gothic
- Conan (Mongoose)
- Conan (TSR)
- Conspiracy X
- Continuum: Roleplaying in The Yet
- CopperHorse
- Coriolis - The Third Horizon
- Corporation
- CORPS RPG
- Cortex System RPG
- Coyote & Crow
- Crimson Skies
- Crown and Skull
- Cryptomancer
- Crypts & Things
- Cthulhu Eternal
- Cybergeneration
- Cyberpunk
- Cyberpunk 2020
- Cyberpunk 203X
- Cyberpunk RED
- Cypher System
- d20 Modern
- d6 Adventure
- d6 Fantasy
- d6 Space
- Daggerheart
- Dangerous Journeys (Mythus)
- Dark Ages: Fae
- Dark Ages: Inquisitor
- Dark Ages: Mage
- Dark Ages: Vampire
- Dark Ages: Werewolf
- Dark Conspiracy
- Dark Heresy
- Dark Souls
- Darwin's World
- DC Heroes
- DC Universe
- Dead Of Night
- Dead Simple RPG
- Deadlands
- Deathwatch
- Deeds Not Words
- Degenesis
- Delta Green
- Deluxe Tunnels & Trolls
- Demon: The Descent
- Demon: The Fallen
- Deviant: The Renegades
- Diaspora
- Digital Burn
- Discussion
- Doctor Who RPG 2E
- Doctor Who: Adventures in Time and Space
- Dog Town
- Dogs in the Vineyard
- Doronai Kofo
- Doronai Nui
- Dragon AGE
- Dragon Warriors
- Dragonball Z
- DragonQuest
- Dragonroar
- Drakar och Demoner
- Dread
- Dream Park
- Dresden Files RPG
- Dune: Adventures in the Imperium
- Dune: Chronicles of the Imperium
- Dungeon Crawl Classics RPG
- Dungeon World
- Dungeons & Dragons (Arcana Unearthed variant)
- Dungeons & Dragons (original)
- Dungeons & Dragons 3.0
- Dungeons & Dragons 3.5
- Dungeons & Dragons 4
- Dungeons & Dragons 5e
- Dungeons & Dragons B/X
- Dungeons & Dragons BECMI
- DungeonSlayers
- DUST Adventures RPG
- Duty and Honour
- Dying Earth
- EABA
- Earthdawn - 1st edition
- Earthdawn - 2nd edition
- Earthdawn - 3rd edition
- Earthdawn - 4th edition
- Earthdawn - Classic edition
- Earthdawn - Revised edition
- Earthdawn: The Age of Legend
- Eberron
- Eclipse Phase
- Eldritch High
- Electric Bastionland
- Elite: Dangerous RPG
- Empire of the Petal Throne
- End All Be All
- Enemy Gods
- Engel
- Engine Heart
- English Eerie
- Equinox
- Esper Genesis
- Etherscope
- EverQuest
- Everway
- Everyday Heroes
- Everywhen
- Exalted
- EZD6
- Fabula Ultima
- Fading Suns
- Fallout
- Fantastic Heroes & Witchery
- Fantasy AGE
- Fantasy Craft
- FASERIP
- FATE
- Fates Worse Than Death
- Fear Itself
- Fellowship of the White Star
- Feng Shui
- Fiasco
- Fief
- Final Fantasy RPG
- Fireborn
- Firefly
- Flashing Blades
- Forbidden Lands
- Fox Magic
- Fragged Empire
- Free-form
- Freeform/Universal RPG
- Fuzion
- Gamma World
- Gamma World (4e D&D conversion)
- Gamma World d20 rules
- Gangbusters
- Geist: The Sin Eaters
- Genesys
- GhostBusters
- Ghouls and Ghosts
- Godbound
- Godlike
- Golden Heroes
- Golden Sky Stories (Yuuyake Koyake)
- Grimm RPG
- GURPS
- GURPS Castle Falkenstein
- GURPS Prime Directive
- GURPS Traveller
- HackMaster
- HackMaster (5th Edition)
- Hard City
- Haven - City of Violence
- Headspace
- Hearts of Wulin
- Heavy Gear
- Hero System
- Hero Wars
- Heroes Against Darkness
- Heroes System
- Heroes Unlimited
- Heroes Unlimited 2nd Edition
- Heroes Unlimited 2nd Edition (Revised)
- Heroquest
- High Adventure Role Playing (HARP)
- Hoard
- Hollow Earth Expedition
- Home-brewed
- Hulks and Horrors
- Human Occupied Landfill
- Hunter: The Reckoning
- Hunter: The Vigil
- Immortal - Invisible War
- In Nominé
- Index Card RPG
- Infinity
- Inquisitor
- InSpectres
- Into the Odd
- Invisible Sun
- Iron Heroes
- Iron Kingdoms
- Ironclaw
- Ironsworn
- Jadeclaw
- Jovian Chronicles
- Judge Dredd
- Judge Dredd d20
- Justifiers
- Kids on Bikes
- Kindred of the East
- Kobolds Ate My Baby
- Labyrinth Lord
- Lace and Steel
- Lady Blackbird
- Lamentations of the Flame Princess
- Lancer
- Legend
- Legend of the Five Rings
- Legends of Anglerre
- Level Up (Advanced 5th Edition)
- LexOccultum
- Little Fears: Nightmare Edition
- Living Steel
- Lone Wolf RPG
- Lord of the Rings
- Lords of Gossamer and Shadow
- M.A.G.U.S.
- Macho Women with Guns
- Mage: Sorcerer's Crusade
- Mage: The Ascension
- Mage: The Awakening
- Maid RPG
- Man, Myth and Magic
- Marvel Heroic RPG
- Marvel Multiverse RPG
- Marvel Super Heroes
- Marvel Super Heroes - SAGA
- Marvel Universe RPG
- Masks: A New Generation
- Mazes and Minotaurs
- Mech Warrior
- Mecha
- Mechanical Dream
- Megatraveller
- Mercenaries, Spies, & Private Eyes
- Message Board Mafia
- Metamorphosis Alpha
- Microlite 20
- Middle Earth Roleplaying
- Millenium's End
- Mini Six
- Mistborn Adventure Game
- Modern AGE
- Mongoose Traveller
- Monster of the Week
- Monsterhearts
- Monty Python’s Cocurricular Mediaeval Reenactment Programme
- Mordheim
- Morrow Project
- Mothership
- Mouse Guard
- Multiple
- Mummy: The Curse
- Mummy: The Resurrection
- Munchkin
- Mutant
- Mutant Future
- Mutant: Year Zero
- Mutants and Masterminds
- Myriad Song
- Myth & Magic
- Mythic Fantasy Roleplaying Game (MYFAROG)
- Mythic Role Playing
- Necromunda
- Neon City Overdrive
- New World of Darkness
- Night Life
- Night Witches
- Night's Black Agents
- Nights of the Crusades
- Ninjas and Super Spies
- Nobilis
- None
- Numenera
- Old Gods of Appalachia
- Old School Essentials
- One Braincell RPG
- One Roll Engine
- OneDice
- Only War
- Open D6
- Open Legend
- Operation Whitebox
- Ork RPG
- Orpheus
- Other Suns
- Over The Edge
- Owl Hoot Trail
- Paleomythic
- Palladium RPG
- Paranoia
- Paranoia XP
- Part Time Gods Second Edition
- Passages
- Pathfinder
- Pathfinder 2E
- Patrol
- PbtA
- Pendragon
- Phantasm
- Pocket Fantasy RPG
- Pokemon Tabletop Adventures
- Pokemon Tabletop United
- Pokethulhu
- Posthuman Pathways
- Powers and Perils
- Prime Directive (original)
- Prime Directive d20
- Prime Directive d6
- Primetime Adventures
- Privateers and Gentlemen
- Promethean: The Created
- Prowlers & Paragons
- Psi World
- Quick Ass Game System
- Quill
- Reclaim the Wild
- Red Dwarf
- Red Markets
- Renegade Nuns on Wheels
- Rifts
- Risus: The Anything RPG
- Robert E Howard's Conan: Adventures In An Age Undreamed Of
- Robotech
- Rocket Age
- Rogue Trader
- Rolemaster
- Romance of the Perilous Land
- Runequest
- Runequest (Mongoose)
- Saga
- Saga of the Splintered Realm
- Sagas of the Icelanders
- Savage Worlds
- Scion
- Scion: Demigod
- Scion: God
- Scion: Hero
- Secrets of Zir'an
- Sengoku
- Sengoku (Revised Edition)
- Sentinel Comics
- Serenity RPG
- Sexcraft
- Shadow Of The Demon Lord
- ShadowRun
- Shadowrun 5E
- Shadowrun 6E
- Shadows of Esteren
- Silver Age Sentinels
- Simple Superheroes
- SLA Industries
- Slasher Flick
- Smallville
- Snakes on a Plane
- Sorcerer
- Space 1889
- Space Opera
- Spacemaster
- Spark
- Spire
- Splicers
- Spycraft d20 rules
- Star Frontiers
- Star Trek - Decypher
- Star Trek - FASA/Games Workshop
- Star Trek - Last Unicorn
- Star Trek Adventures
- Star Wars (West End Games)
- Star Wars d20 rules
- Star Wars Saga Edition
- Star Wars: Age of Rebellion
- Star Wars: Edge of the Empire
- Star Wars: Force and Destiny
- Stara Szkoła
- Starblazer
- Starfinder
- Stargate
- Stars Without Number
- Starship Troopers
- Steve Perrin's Quest Rules
- STOCS Lite
- STOCS RPG
- Street Fighter: The Storytelling Game
- Supernatural RPG
- SUPERS! Revised Edition
- Swashbucklers of the Seven Skies
- Swords & Six-Siders
- Swords and Wizardry
- Swords of the Serpentine
- Symbaroum
- T.W.E.R.P.S.
- Tales from the Floating Vagabond
- Tales from the Loop
- Tales of the Valiant
- Talislanta
- Talisman Adventures
- Technoir
- Teenage Mutant Ninja Turtles and Other Strangeness
- Teenagers from Outer Space
- Tenra Bansho Zero
- Terra Primate
- The Adventures of Indiana Jones
- The Age of Shadow
- The Babylon Project
- The Dark Eye
- The Fantasy Trip
- The Flux
- The Mutant Epoch
- The One Ring
- The Riddle of Steel
- The Secret Fire
- The Shadow of Yesterday
- The Strange
- The Troubleshooters
- The Wildsea
- The Window
- The Witcher
- The World of Synnibarr
- There Is No Spoon
- Thirsty Sword Lesbians
- Tiny Dungeon
- Titan World
- Tomorrow City
- Toon
- Top Secret
- Torchbearer
- Torg
- Trail of Cthulhu
- Transformers RPG
- Traveller 4 (Mark Miller's Traveller)
- Traveller 5
- Traveller d20
- Traveller: Classic
- Traveller: The New Era
- Trinity
- TriStat dx
- True 20 (Blue Rose, etc)
- Tunnels and Trolls
- Twilight 2000
- Twilight 2013
- Ubiquity
- Unbelievably Simple Roleplaying
- Unbound
- Underground
- Unhallowed Metropolis
- UniSystem
- Unity
- Unknown Armies
- Urban Shadows
- Vaesen
- Vampire the Masquerade: 5e
- Vampire: The Dark Ages
- Vampire: The Masquerade
- Vampire: The Requiem
- Victorian Age Vampire
- Villains and Vigilantes
- Vivid RPG
- Void Trek 3007 AD
- WarHammer 40K
- WarHammer Fantasy Battle
- Warhammer Fantasy Roleplaying
- Warlock!
- Warmaster
- WaRP - Wanton Role-Playing
- Warpstar!
- Warrior, Rogue & Mage
- WasteWorld
- Weapons of the Gods
- Werewolf: The Apocalypse
- Werewolf: The Forsaken
- Western
- What's O.L.D. is N.E.W.
- Wheel of Time
- Wicked Heroes
- Wild Talents
- Wilderness of Mirrors
- Witch Hunter: The Invisible World
- World of Darkness
- World of Dew
- World of Warcraft RPG
- Worlds Beyond
- Worlds Without Number
- Wraith: The Oblivion
- Wrath & Glory
- Wushu
- X_PG
- XCrawl
- XDM: X-Treme Dungeon Mastery
- XDM: X-Treme Dungeon Mastery, 2nd Edition
- Xenoforce
- Xro Dinn Chronicles
- Year of the Pheonix
- Yesterday’s Tomorrow
- Zweihänder