World building has become one of the creative industry’s favourite phrases. Brands have worlds. Creators have universes. Production companies are building IP across film, social, live experiences and interactive platforms. But there is a risk that we are using “world” to describe something simpler: a visual system with more scenery. A brand world can have a distinctive colour palette, architecture, characters, music and tone. It can look coherent across every platform and still not really be a world.
A visual identity determines how a world looks. A narrative system determines how it behaves.
That distinction matters because the moment an audience can do more than look, consistency becomes harder. A character might appear in a film, return on social media, speak in a podcast and now answer an audience member directly.
On one recent character project, we took the same fictional character through film episodes, podcasting, music, social content, a website and live conversation. The difficult part was not reproducing her appearance. It was preserving the sense that this was still the same person when the medium changed, particularly when the audience could ask something we had never scripted. At that point, visual guidelines are no longer enough. What does the character know? What do they want? What are they allowed to say? If something changes in one format, is that change remembered somewhere else? These are world building questions because they concern rules, memory and consequence.
I learned a version of this years ago designing physical themed environments. You could architecturally create a convincing Wild West town or fantasy kingdom, but the illusion depended just as much on how guests moved through it, how cast members responded to them and how the story continued beyond the physical space. The scenery established the setting. The rules established the world.
A useful test is to ask: can something happen inside this world without breaking it?
A moodboard can tell a filmmaker which colours belong in the room. It cannot tell them how the person living there would respond if a stranger knocked on the door. A character sheet can establish appearance and tone of voice. It cannot tell a conversational designer how that character behaves when asked something unexpected. This matters more as generative production removes friction from making content. We can now create convincing characters, locations and variations at extraordinary speed. That is exciting, but it also means we can scale inconsistency just as quickly as output.
Ten beautifully produced pieces of content do not automatically create a coherent universe. They can just give you ten beautifully produced contradictions.
For studios and creators moving from individual commissions towards persistent IP, the opportunity is not simply to make more assets. It is to design enough narrative architecture that different people, tools and formats can contribute without reinventing the underlying logic. That does not require a hundred page mythology document. Often a lightweight system is enough: the central premise, rules that cannot be broken, character motivations, important history, the audience’s role and what changes or persists.
Good worlds should also allow different formats to do different jobs. Film can establish emotion. Social can reveal smaller moments. Audio can create intimacy. Interactive experiences can allow participation. Conversation can let a character respond.
Continuity is not repetition. It is the feeling that all of those things belong to the same reality.
I have spent different parts of my career making films, visualising environments, designing physical experiences and, more recently, building interactive and conversational ones. The tools have changed dramatically, but the problem keeps returning: once several disciplines contribute to the same idea, somebody has to protect the reality they supposedly share.
Technology can produce the individual pieces remarkably quickly. The harder question is whether those pieces still recognise one another when they meet. As studios become publishers, creators become IP owners and brands think beyond individual campaigns, “world building” becomes useful only if we ask more of it. A world is not simply an aesthetic big enough to contain lots of content.
It is a system capable of surviving what happens next.
Steve McPartland is founder and Head of Creative at Visually Sonic
