Trivia 101

A cross-platform trivia game for players of all ages! You use your TriviaPhone to select answer options displayed on the screen and compete with your friends to get the most points!

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Inspiration

The competition theme is open source, and since open sourcing is all about learning and sharing, I wanted to create something that was packed with useful information while capturing that classic educational vibe. When I found out about the data as an asset feature, it felt like everything just clicked into place.

What it does

It's a trivia game where questions show up on a big projector screen that everyone can see, and players use their CustomUI phones to answer. The CustomUI system makes it really smooth and responsive, which adds a fun twist to the usual trivia experience.

How we built it

I used a bunch of different tools to put this together. All the UI was designed from scratch in Figma, using Google Material Symbols to keep everything looking consistent. For the coding side, I used GitHub for version control, and I used Claude 4 Sonnet, Claude 4 Opus, and Grok Code Fast 1 as my coding agents. Gemini helped with general questions and problem-solving. Windows PowerToys was a lifesaver for the UI work - the color picker, measuring tools, and text extractor made everything way faster, and the MHCP Discord community was awesome for getting feedback and finding resources.

My friend AdamSaf took care of all the 3D stuff. He's a 3D artist who primarily works with Autodesk Maya and Adobe Substance Painter, and he built all the 3D assets and the world from scratch.

Challenges we ran into

Since I'm new to the MHCP, I didn't really know where to begin with the Desktop Editor. And since both of us were previously Rec Room creators, our prior experience with world building tools required us to fundamentally re-learn how to create worlds with these new tools. And although it wasn't easy, it was really nice to be able to import FBX files directly from external sources.

Accomplishments that we're proud of

This was my first time using Horizon Worlds' new TypeScript system, so seeing the whole game actually work was incredibly exciting. I spent dozens of hours tweaking the CustomUI to get it looking good while still running smoothly. Since I designed everything from the ground up, I was able to make it work exactly how I had originally envisioned.

What we learned

This competition taught me so much. I met a ton of amazing creators in the MHCP Discord, and everyone had unique stories to share. Being around all these creative people showed me new tools and ways of working that have made me way more productive. Between the community-curated MCP repos and the server's help channels, I found way more resources than I even knew I needed.

What's next for Trivia 101

I'd love to add more trivia categories and try the system in different environments. Since it's built to work in various setups, I'm excited to see what else the TriviaPhone could do. But a few things I have in mind are client-side customization like dark mode, custom sounds, or new ways for players to interact with each other through a CustomUI phone interface.

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