The story was first teased online by Big Finish Productions and Doctor Who social media on 26 April 2020, with first details of the storyline being announced on the following day.
Big Finish's news announced that "Time Lord Victorious will tell a new and untold story, set in the Dark Times near the start of the universe, when even the Eternals were young. Following several Doctors across space and time as they defend their home planet from a terrible race, this is a story like no other."
Doctor Who: Time Fracture - A 90 minute immersive event put on by Immersive Everywhere in central London, originally to premiere in Autumn 2020, before being pushed back to 2021. It finally opened on 26 May 2021.
A Dalek Awakens - the second Doctor Who-themed "escape room" game developed by Escape Hunt. While nothing has been added to this escape room specifically for this event, this event elaborates on the history of the particular Dalek found therein.
The Edge of Time - A VR game previously developed by Maze Theory. At the same time that two non-VR titles are in development to expand The Edge of Time into a trilogy of games, new updates are being planned that will connect the original game to the multi-platform event. Some will be story content, some will be new items, and some will be traditional feature-based updates.
Eaglemoss Hero Collector is releasing four separate figurine sets, each of which come with a companion magazine that further explains the story.
Furthermore a Time Lord Victorious blu-ray collection titled "The Road to the Dark Times" contained the following stories selected by producer and writer James Goss plus a guide to how they build to the Time Lord Victorious storyline:
James Goss, producer of Time Lord Victorious, reassured users on Twitter that all the stories would be available globally (with the exception of the escape room and the immersive theatre) and that the story was "inclusive", so that even without purchasing all of the releases, they would still get a "completed story".
The title of this series comes from the Tenth Doctor in TV: The Waters of Mars, who briefly believes that rather than being a survivor of the Time War, he is the winner: the Time Lord Victorious. The episode was later retroactively incorporated as a part of the series.
Even as the series was announced and was beginning to roll out, Doctor Who licenses were still coming to Goss with ideas on how to expand the event because of how enthused they were with the idea.
The Brian the OodT-shirt was something James Goss was quite interested in making sure worked out, teasing ahead of time that there were meetings concerning putting a story on a T-shirt, and making sure that such a thing was possible.
The genesis of this project was described by Goss as the BBC calling him in, saying they wanted this project, "it should probably be called Time Lord Victorious, good luck!" He came back with some ideas, they liked them, nothing happened for a few months, and then they just gave him the green light out of nowhere.
Due to the COVID-19 crisis there was a very real worry that this entire project would have to be canceled in its entirety.
As of July 25, 2020 Goss noted that both the Immersive Theater and the Escape Room are working to find ways to open in a safe way even given the pandemic. However, the Immersive Theater ended up being pushed back to spring of 2021, even though it was originally planned for Autumn of 2020.
Goss told the Radio Times that the BBC had been covertly digitally focus grouping ideas for what fans actually wanted in spin-off media through sneaking questions into certain events. When Goss was first brought to a meeting regarding this topic, he was given a list of things that fans were interested in seeing, Doctors, monsters, etc, based on this practice. While this influenced broad story beats, such as having interest in more of the Eighth Doctor or the Daleks, it didn't specifically cause them to include a story involving the two of them together.
Goss stated that the BBC had been trying to get a project like this working for "four or five years now".
When asked, Goss revealed that his favorite part of this project was the creation of the toy for the Dalek Emperor.