After a brief stint in advertising, Tynion was asked by Scott Snyder to co-write the back-up features for the
New 52 relaunch of
Batman, beginning with the acclaimed "
Night of the Owls" storyline. These features would lead to the launch of a spin-off comic book
Talon, co-plotted with Snyder and written by Tynion. In 2013, Tynion released his first original comic series,
The Eighth Seal, for
Mark Waid's digital comic publisher Thrillbent. Tynion would go on to be one of the head writers of
Batman Eternal, a weekly Batman comic series launched in 2014 that was designed to explore the full scope and cast of
Gotham City. That same year, he released the
GLAAD Media Award-nominated comic title
Memetic with artist Eryk Donovan and Award-winning
The Woods with Michael Dialynas at
Boom Studios. Adaptations of both series are currently in development. In 2016, Tynion's partnership with Boom continued with the PRISM Award-winning comic title
The Backstagers, as well as at DC via the first of three
Batman/Teenage Mutant Ninja Turtles comic book crossovers with DC and
IDW Publishing, the first ever meeting between the two franchises. That same year, Tynion was announced as the writer of the biweekly
Detective Comics for DC's
Rebirth initiative. In 2018, Tynion launched an acclaimed revival of the comic
Justice League Dark, which led into the
Wonder Woman crossover storyline "
The Witching Hour." The following year, he launched the
Eisner-winning and
Harvey-nominated comic book mini-series
Something is Killing the Children, which was later upgraded to an ongoing title due to high demand. A
Netflix series adaptation by
Mike Flanagan and Trevor Macy is currently in development. In 2020, Tynion was announced as the writer of the main
Batman comic title, where he would go on to co-create characters like Punchline, Ghost-Maker, Clownhunter, and Miracle Molly. That July, he premiered the self-published horror magazine
Razorblades. and on September 30 that year, he launched the Eisner and Harvey-nominated
The Department of Truth at Image, The film and television rights to
The Department of Truth were purchased by Sister, the production banner co-founded by Elisabeth Murdoch, Stacey Snider, and Jane Featherstone, in February 2021. In 2021, Tynion launched two Eisner Award-nominated comic titles–the first volume of the graphic novel series
Wynd at Boom, and the Eisner-winning
The Nice House on the Lake at
DC Black Label. 2021 also marked Tynion's first
Eisner Award for Best Writer. That same year, Tynion and Boom announced a spin-off comic to
Something is Killing the Children titled
House of Slaughter, co-written with Tate Brombal (and later with Sam Johns), which launched to record numbers. 2021 would also see Tynion leave his exclusive contract with DC and be offered a grant from
Substack to launch a slate of original creator-owned comic titles directly on their platform, with the first being the ongoing comic
Blue Book with artist
Michael Avon Oeming. In August 2021, Tynion was among a group of creators with whom fellow comics writer
Nick Spencer formed a deal with the subscription-based newsletter platform
Substack to publish
creator-owned comics stories, essays, and instructional guides. Tynion indicated that he would end his tenure on the
Batman books in order to concentrate his time on his Substack newsletter, which would include
Blue Book, a
nonfiction series illustrated by
Michael Avon Oeming, and based on accounts of
alien encounters The series would be released in ten page chapters, twice a month, on Fridays. The first chapter would depict the 1961
Barney and Betty Hill incident, in which the Hills stated that they were abducted from the
White Mountains in New Hampshire by aliens. In October 2023, it was announced that a second chapter, titled
Blue Book: 1947, which focuses on new characters, was scheduled to be published in February 2024. In February 2022, Tynion launched on Substack two ongoing comics series:
The Oddly Pedestrian Life of Christopher Chaos, which is written by Tate Brombal, and based on an idea by Tynion;
True Weird, and the limited comic series
The Closet, which would later be re-published by
Image Comics. That April, Tynion launched
The Sandman Universe: Nightmare Country, a spin-off of the
Vertigo comic book
The Sandman. That November, it was reported that Tynion had partnered with
Dark Horse Comics to release print versions of Tiny Onion's Substack books, as well as original stories. Tynion contributed to the comic anthology ''The Devil's Cut
, which was published by the publishing startup DSTLRY in 2023. He also began a new horror series for Image, entitled W0rldtr33'', with artist Fernando Blanco, with publication beginning in April 2023. On February 16, 2024, Tynion announced that he was creating a new production studio called Tiny Onion in collaboration with
Lyrical Media who had invested seven figures in the studio. The purpose of the new studio as outlined by Tynion will be to aid in "the development, packaging, marketing and cross-platform promotion of new creator-owned work" as well as "be a springboard for new creator-owned IP to spread beyond comics into film, gaming and even animation." ==Personal life==