A short walking sim based on 3DGS that runs in the browser
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Hi! I built a free short walking sim you that runs in the browser.I originally made this experience about 2-3 years ago in Unreal Engine. The resulting build was huge: over 6 GB to download in order to play for max 10 minutes. Needless to say there weren't that many people that ended up playing the game.Seeing the quality that's possible to achieve nowadays in the browser using gaussian splats, I recently got the idea to port it to a web-based experience. The result is that the whole game is a bit over 100 MB, and that's including about 20 MB of music and VO. Thanks to Spark's streamed LOD system, you don't even have to have everything downloaded by the time you start playing.I've learned quite a bit about gaussian splats along the way, the main takeaway being that using splats for VFX inside a splat scene is still a bit of an unsolved problem (there's no way to decouple the VFX splats from the rest of the scene while keeping occlusion, and mixing static LOD'd splats with animated VFX splats leads to lag when LOD changes).Let me know if you have any feedback or questions, and I'll do my best to answer them later tonight or tomorrow. Cheers!
HN · launched Jul 6, 2026 · 5 upvotes (top 89%) · 1 view
Niche: browser-based video games · 380 launches, 21 in the last 7 days ▼ -28% · Explore this niche →
Category and tags
- Media & entertainment
- Hardware & robotics
- B2C
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 380 launches in browser-based video games →
Could you build this?
Partial Web-based 3D Gaussian Splatting viewing is accessible via open-source libraries, but creating a performant, low-memory interactive browser game from scanned 3DGS scenes requires specialized optimization.
What it would actually take: Built on top of WebGL/WebGPU 3DGS renderers (like gsplat.js or Three.js splat loaders) with custom camera collision meshes and input controllers. The primary technical hurdle is aggressive splat pruning, LOD streaming, and memory management to allow a rich scanned environment to fit comfortably within browser VRAM and bandwidth constraints without stuttering. Requires 3D graphics and photogrammetry/3DGS pipeline expertise.
Discussion
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Competitors
Other products that read as similar to this one : 621 launches clear the similarity bar, closest 8 shown.
Attention rank: #562 of 622 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 248 days after the earliest competitor.
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- PicoPlayer · hn · 2026-10-30 · 13 upvotes · similarity 0.49
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