Realistic VR Game Demo Build

I already have a full written script and I now need it translated into a short, visually playable demo as quickly as possible. The experience must feel virtually realistic, with high-fidelity graphics, believable interactions, and smooth user flow that matches every beat of the script. I want the build done in Unreal Engine; please take advantage of its real-time lighting, Nanite/Lumen (if you feel it helps performance), and blueprint or C++—whichever gets us to a stable prototype fastest. The final demo has to run online through a digital download or Web build so I can share a link with stakeholders without extra hardware requirements. Scope of work • Block-out → polished scene that reflects the script’s environments, characters, and key interactions • Core gameplay loop fully functional (player movement, interactive objects, basic UI prompts) • One complete “vertical slice” that demonstrates visuals, audio, and mechanics together • Simple start menu plus an exit/credits screen Acceptance criteria • Script beats mirrored 1-to-1 in the demo • No critical bugs or crashes during a 10-minute play-through on a standard PC browser/download build • File size small enough for easy online sharing (target < 2 GB) If you’ve shipped or prototyped realistic VR/3D experiences in Unreal before and can hit tight timelines, let’s move fast—I’m ready to provide the script, reference art, and daily feedback the moment we agree to start.