Question: 13th Age is a d20 fantasy tabletop role-playing game produced by Pelgrane Press Ltd, a British role-playing game publishing company based where?

Context paragraphs:
Pelgrane Press: Pelgrane Press Ltd is a British role-playing game publishing company based in London and founded in 1999.  It is co-owned by Simon J Rogers and Cathriona Tobin.  It currently produces GUMSHOE System RPGs, "13th Age", the Diana Jones award-winning "Hillfolk" RPG, the "Dying Earth Roleplaying Game",and other related products.

Dungeons &amp; Dragons: Dungeons & Dragons (abbreviated as D&D or DnD) is a fantasy tabletop role-playing game (RPG) originally designed by Gary Gygax and Dave Arneson, and first published in 1974 by Tactical Studies Rules, Inc. (TSR).  The game has been published by Wizards of the Coast (now a subsidiary of Hasbro) since 1997.  It was derived from miniature wargames with a variation of the "Chainmail" game serving as the initial rule system.  "D&D"'s publication is commonly recognized as the beginning of modern role-playing games and the role-playing game industry.

30 Years of Adventure: 30 Years of Adventure: A Celebration of Dungeons & Dragons is a 2004 publisher's retrospective written by Harold Johnson, Steve Winter, Peter Adkison, Ed Stark, and Peter Archer.  It is an illustrated, behind-the-scenes history of the "Dungeons & Dragons" ("D&D") fantasy tabletop role-playing game, issued by the game's publisher (Wizards of the Coast) to commemorate the game's 30th anniversary.

13th Age: 13th Age is a d20 fantasy tabletop role-playing game, designed by Rob Heinsoo (lead designer of "Dungeons & Dragons" 4th Edition) and Jonathan Tweet (lead designer of "D&D" 3rd Edition), and published by Pelgrane Press.  It was released on August 3, 2013, and the pre-release version was a nominee for the RPG Geek RPG of the Year 2013.  As of December 2013 the ENWorld hot games list showed that discussions of it were responsible for 2.6% of all "D&D" related web traffic they had been able to index.

Aasimar: In the "Dungeons & Dragons" fantasy tabletop role-playing game, aasimar are a fictional race of humanoid creatures who are descended from celestials, angels and other creatures of good alignment.  In the 4th Edition of the game, the equivalent race are referred to as devas.

Aslan (fanzine): Aslan was a highly-regarded British role-playing game fanzine that was published in Brighton and subsequently York in the late 1980s and early 1990s.  It ran for 13 issues and many of them had sub-zines included.  The title refers to both a character in The Chronicles of Narnia and an alien race in the Traveller role-playing game.  The fanzine grew out of a long-running fantasy role-playing game which took place at the University of Sussex.  The editor and publisher was Andrew Rilstone, who was initially assisted by Martin Wykes.

Hillfolk: Hillfolk is a tabletop role-playing game designed by Robin Laws and published by Pelgrane Press.  It was initially launched via Kickstarter in 2012, with the funding being sufficiently successful that a second book called "Blood on the Snow", containing 33 new settings, was produced as a part of the kickstarter.  Reception was positive, with RPGamer saying "mechanics don't so much get out of the way of roleplay as provide a supportive foundation for it to happen."

Pagan Publishing: Pagan Publishing is a role-playing game publishing company founded by John Scott Tynes in 1990.  It began by publishing a "Call of Cthulhu" role-playing game fanzine, "The Unspeakable Oath".  In 1994, the company moved from Columbia, Missouri to Seattle, Washington where it incorporated.  The staff at this time included John Tynes as editor-in-chief, John H. Crowe III as business manager, Dennis Detwiller as art director, and Brian Appleton and Chris Klepac as editors.  Tynes, Detwiller and Adam Scott Glancy released the "Delta Green" modern "Call of Cthulhu" campaign setting in 1996.  Pagan has released many other "Call of Cthulhu" products, including a foray into card games with "Creatures & Cultists" and miniature games with "The Hills Rise Wild! ".

Role-playing video game: A role-playing video game (commonly referred to as role-playing game or RPG, as well as computer role-playing game or CRPG) is a video game genre where the player controls the actions of a character (and/or several party members) immersed in some well-defined world.  Many role-playing video games have origins in tabletop role-playing games (Including "Dungeons & Dragons") and use much of the same , settings and game mechanics.  Other major similarities with pen-and-paper games include developed story-telling and narrative elements, player character development, complexity, as well as replayability and immersion.  The electronic medium removes the necessity for a gamemaster and increases combat resolution speed.  RPGs have evolved from simple text-based console-window games into visually rich 3D experiences.

Shadowrun: Shadowrun is a science fantasy tabletop role-playing game set in a near-future fictional universe in which cybernetics, magic and fantasy creatures co-exist.  It combines genres of cyberpunk, urban fantasy and crime, with occasional elements of conspiracy, horror and detective fiction.  From its inception in 1989, "Shadowrun" has remained among the most popular role-playing games.  It has spawned a vast franchise that includes a series of novels, a collectible card game, two miniature-based tabletop wargames, and multiple video games.

Supporting paragraphs: Pelgrane Press 13th Age
Answer: in London