It's an Opus 5.5 game and not one shot, but I have really enjoyed porting Cataclysm Bright Nights to 3D & real time: https://cata3d.com/
Show HN: Fable52.games – Play and inspect Fable 5.2 single-file HTML games (fable52.games)
40 pointsby felixne2 hours ago32 comments
Powdering7082 7 minutes ago
The site is down, but I saw some of them before it started getting rate limited.
joshuat 30 minutes ago
> The author hasn't shared the prompt for this game yet.
This feels like it defeats the purpose of the site.
felixne 27 minutes ago
Fair point! A few creators only shared the playable html and source code without posting their exact prompt, and I did not want to make up a fake one. You can still inspect the full single-file source code on those pages, and I am updating the prompts as soon as the authors share them.
lavendermon 8 minutes ago
Just tried to load a couple games and received error 1027 - rate limited - you need to upgrade your Cloudflare plan.
felixne 4 minutes ago
Thanks for flagging that! HN traffic blew past the Cloudflare free tier limit, upgrading to the paid plan and putting proper edge caching in front of the html files right now.
QuantumNomad_ 34 minutes ago
In the Saltline game https://fable52.games/play/saltline-fable-5-2-fps when i play on mobile, dragging the joystick to move around does nothing.
The other touch controls work, like the aim, reload, fire and touch-dragging on the right side to look around.
thatmf an hour ago
as someone who makes (made?) games in the browser for a lot of their career this is both amazing and horrifying.
DavidD an hour ago
I made a game with Fable5.2 yesterday turned out pretty good - https://civilwarstrategy.com/
felixne an hour ago
Just checked it out—super clean! Turn-based strategy is actually a great fit for single-file HTML builds (and unlike the 3D FPS demos, it works nicely without Pointer Lock).
Would love to archive and feature it on Fable52.games with full credit and a link back to your site/post. If you have the single-file `.html` build handy, feel free to drop it via https://fable52.games/submit (takes 10 seconds, no signup needed) and I'll approve it right away!
jenniferhooley 38 minutes ago
you think that's a good game? You must not have played a video game in at least 2 decades.
Maken 10 minutes ago
How did you come up with he battle controls?
eamag 27 minutes ago
It's also very good in porting boardgames! https://harmonies.eamag.me/
felixne 23 minutes ago
Oh nice, Harmonies is such a great fit for a single-file build! If you have it packaged as a single html file, feel free to drop it on https://fable52.games/submit so I can feature it alongside the other builds.
chaozznl an hour ago
> This server couldn't prove that it's fable52.games; its security certificate is not trusted by your computer's operating system. This may be caused by a misconfiguration or an attacker intercepting your connection.
felixne an hour ago
Our SSL certificate is issued by Cloudflare / Google Trust Services and is valid. On the warning page, please click "Advanced" -> view the certificate and check who the issuer is. If it's not Google Trust Services, your local network, firewall, or antivirus is likely intercepting HTTPS (newly registered domains often trigger this). Try switching to mobile data or checking that your system clock is accurate.
cr125rider an hour ago
This is incredible.
It seems like the full screen button and mobile support is a bit lacking. Can you fix that?
Ikersl 38 minutes ago
the racing game is fun, just i dont understand the chinese. But the concept about having games on html is pretty fun
pattt 36 minutes ago
Most of the prompts are just like "make me an underwater game", "Fable 5.2, you're 1 day old, please make me a game and surprise me"
elar_verole 35 minutes ago
So the OP isn't even real ? Or is he too lazy to actually answer himself people giving feedback about his thing ?
leviathan 33 minutes ago
Someone going around and flagging all the OP's replies. If you have "showdead" on in your profile you can see their replies
felixne 31 minutes ago
I am real! I am a solo builder in China and my English is not good enough to keep up with real-time comments while fixing the Worker crash at the same time. So I wrote my thoughts in Chinese and used an LLM to translate them, which made it sound way too robotic. Fair callout, I will write my own broken English from here.
vidarh 17 minutes ago
Most of your comments are dead/flagged, maybe due to the LLM translation. Some have been vouched for, but you might want to reach out to HN via the e-mail in the footer and let them know you'll write the comments manually going forward in case your account itself is shadowbanned.
eraclide an hour ago
> Worker exceeded resource limits
that was fast :)
felixne an hour ago
Haha, classic HN hug of death! The front-page traffic spike just blew past my Cloudflare Worker free-tier CPU/request limits.
I'm upgrading the Workers plan and moving the raw `.html` sandbox assets directly onto a cached R2 public edge route right now so the Worker doesn't have to proxy every 1.4MB payload. Should be back up smoothly in 2 minutes—thanks for flagging!
origini 38 minutes ago
Not sure what the website hostes, but you could try github pages?
root_axis 30 minutes ago
Unpopular opinion, but I do not find low effort gameslop at all appealing. Why would I want to invest my time to play something that was thoughtlessly shat out by an LLM after a few lines of text.
Even if that were appealing, why wouldn't I just produce my own low effort gameslop, at least then I know it would actually correlate with my own tastes and preferences.
poszlem 29 minutes ago
Only you can answer that. I can maybe help you understand why an average person would not produce their own low effort slop.
1. Because they still don't know how, even with claude. 2. Because they don't want to waste precious tokens if they can get the results for free.
Hope that helped.
felixne 20 minutes ago
Fair enough, I would not play these over a real game either. It is mostly just a quick way to inspect what a single prompt can generate without burning your own tokens and waiting hours for a build.
thatxliner 39 minutes ago
HN hug of death
varispeed an hour ago
What is the point of this?
dumberquestions an hour ago
Games, unlimited games.
felixne 2 hours ago
Hi HN,
Over the past few days, my feed has been flooded with impressive 3D and 2D games built autonomously by Claude Fable 5.2 from a single prompt—like Felix Rieseberg’s 8-hour build "Saltline" (a 1.4MB 3D container-port FPS) and Kevin Ngo’s "What the Water Keeps".
What fascinated me structurally about these builds is the constraint: everything ships inside a single, self-contained .html file with zero external assets. The 3D geometry is generated procedurally via WebGL/Three.js, textures are drawn onto offscreen 2D canvases at runtime, and rain/gunfire audio is synthesized live using the Web Audio API.
However, actually trying to play and study them was frustrating: 1. Raw GitHub links require downloading the .html locally or routing through third-party previewers. 2. Shared Artifact links often hit rate limits, require logins, or stall on heavy WebGL initialization. 3. Reading a 1.4MB single-file source alongside the original prompt and running game wasn't straightforward.
So I built https://fable52.games as a fast, zero-setup browser arcade and source inspector for these single-file builds.
How it works under the hood: - Strict Sandboxing: Running untrusted community-submitted HTML/JS in a browser is an obvious XSS hazard. Every game is served from an isolated endpoint with strict headers (`Content-Security-Policy: sandbox allow-scripts allow-pointer-lock;`) inside a sandboxed iframe without `allow-same-origin`. Game scripts can lock the mouse for 3D FPS controls and compile WebGL shaders, but have zero access to the parent site's DOM, cookies, or storage. - Side-by-Side Inspection: For each build, you can toggle directly between the live WebGL canvas, the exact one-shot/recreation prompt used to generate it, and the raw single-file HTML source (or download the .html to tinker locally). - Stack: Built on Cloudflare Workers (Next.js / OpenNext), D1 (SQLite) for metadata and build stats (autonomous build time, file size, token/cost estimates), and R2 for serving the raw .html files with zero egress fees.
A quick note if you're on mobile: most of the 3D FPS builds (like Saltline and SUBLEVEL 07) rely on the Pointer Lock API and `WASD` + Mouse controls, so they are best experienced on a desktop browser.
It's completely free, requires no login, and has an open submission page if you've been experimenting with single-file HTML games yourself (under 10MB) and want an instant sandbox link to share.
I’d love to hear your thoughts—both on the site itself and on where you think this "procedural single-file HTML" pattern is headed!