Today’s Show HN discoveries include a terrain generator, an arcade, a carrier-settings explorer and tools for making product decisions. Each has a public website or demo to inspect, with the original discussion linked for more context from its maker.
Selection window: the 24 hours ending October 10, 2026 at 02:10 UTC (October 9 at 7:10 p.m. Pacific time). We checked Show HN’s newest submissions, official API timestamps and the linked websites. All ten fit this window, and their domains do not repeat our recent editions. This is an editorial selection, not a popularity ranking. A submission date does not establish when a website first launched. We inspected public pages and selected interfaces, not every product’s complete workflow.
1. Programming Language Wars: Turn language rivalries into an arcade game
Programming Language Wars is a browser-based 2D game built around programming-language rivalries. Its rendered menu offers an arcade ladder, matches against AI or another player, and a playground for trying abilities. Developers who enjoy language jokes can explore a playful project with a source-code link alongside the game.
Before you try it: The game requires JavaScript and uses a canvas interface. We checked the menu, not the balance or performance of a complete playthrough.
Visit website · Read the Show HN discussion
2. Winning Funnels: Research the path from an ad to its landing pages
Winning Funnels takes a niche description and searches for advertising funnels, capturing pages and explaining their structure. A public library also lets visitors browse examples before starting their own research. Marketers can use it to study how an offer, ad and destination page connect, rather than examining the advertisement alone.
Before you try it: Revenue figures on the site are estimates, not verified business accounts. Use them as research prompts and inspect the actual pages before drawing conclusions about commercial success.
Visit website · Read the Show HN discussion
3. Wingral: Compare alternatives before committing to a design
Wingral organizes decisions around competing ideas or designs and feedback from people. Its interactive browser demo includes a sample homepage decision with responses and a result, plus controls for starting another decision. Product teams can use the example to understand how a comparison might be shared and reviewed.
Before you try it: The demo explicitly runs only in the browser and saves nothing to an account. Its sample responses are demonstration data, not feedback on your own design.
Visit website · Read the Show HN discussion
4. Talus: Generate game terrain in the browser
Talus uses a small diffusion model to create heightmaps, with terrain controls and repeatable seeds. The site offers exports for common game and 3D workflows, including image, RAW and OBJ formats. Game developers looking for a starting terrain can explore it without first configuring a local machine-learning environment.
Before you try it: The initial model download is about 54 MB. Outputs are limited to small maps, and the maker notes that training used procedural terrain; the site also identifies weaknesses in fine detail.
Visit website · Read the Show HN discussion
5. Retro Metro: Explore console history through a browser arcade
Retro Metro presents game history as a sequence of eras, combining playable material with a browser emulator. Visitors can load supported game files of their own, including several Nintendo systems and PlayStation formats. It is a useful discovery stop for retro-computing enthusiasts who want a historical interface around their collection.
Before you try it: The site says it does not host commercial games; its library contains homebrew under open licences. Compatibility and performance can depend on the file, browser and device.
Visit website · Read the Show HN discussion
6. Carrier-Explode: Compare the carrier settings shipped with phones
Carrier-Explode decodes carrier configuration from iPhone, Pixel and Galaxy firmware. It offers views by carrier, country, feature and build, with comparisons and downloadable data. Mobile-network enthusiasts can investigate how settings such as APNs, Wi-Fi Calling and 5G differ across devices and releases.
Before you try it: The maker says decoding assumptions still need checking. A firmware setting does not guarantee that a particular subscription, phone or location will receive the advertised network feature.
Visit website · Read the Show HN discussion
7. Plannotator Inbox: Collect decisions from long-running agents
Plannotator Inbox gives agent questions, blockers and review material a shared place to arrive. Users can answer later, annotate attached work and return that context to the agent. Developers coordinating several ongoing tasks can explore a workflow that separates an agent’s detailed run from the decisions a person needs to make.
Before you try it: This is a locally installed product with a browser interface. The website says hosted and phone access are still coming; integrations and reply delivery should be checked with your agent setup.
Visit website · Read the Show HN discussion
8. Cactus Needle demo: See local language input choose concrete actions
The Cactus Needle demo turns typed or spoken requests into controls for a beat studio or example lights. It illustrates tool calling in a JavaScript application: a request can change a tempo or another exposed setting. Developers exploring local AI interfaces can inspect the visible tools and the linked source.
Before you try it: First use downloads a model, and JavaScript is required. The site states that requests and audio stay on the device; we have not independently audited the implementation or speech accuracy.
Visit website · Read the Show HN discussion
9. Read Rare: Browse a shelf of technology documents and books
Read Rare collects links to historical memos, company documents and books in a single browsable index. It includes material about technology organizations and the decisions behind them. Readers interested in business or computing history can use it as a discovery directory and then follow a title to its underlying source.
Before you try it: Reading and borrowing happen through different external hosts. Availability and access requirements vary, and the directory’s description should not replace checking a document’s provenance and context.
Visit website · Read the Show HN discussion
10. Higherlevel: Review software behavior alongside the evidence
Higherlevel combines specifications with screenshots, recordings and discussion. Teams can describe acceptance examples, compare before-and-after behavior and comment on particular parts of the evidence. It is aimed at people who delegate implementation to agents but still need agreement about what a change should do.
Before you try it: The product is in public beta. Its approval workflow requires open blockers to be resolved, but the evidence and acceptance cases still need to cover the behavior your team cares about.
Visit website · Read the Show HN discussion
Explore in small batches
Start with a public example: a terrain seed, a carrier comparison or Wingral’s sample decision. For tools that require installation or an account, inspect the documentation before adding real project data. Keep the HN thread nearby to distinguish the maker’s intentions from the features currently available.
Today’s domain list
Load these ten website links into OpenURL, review the queue, and click Open batch when ready. Loading replaces the tool’s current list; it does not open external websites automatically.
github.avestura.dev findwinningfunnels.com wingral.com talus.tersa.tech retro-metro.xyz carrierexplode.com plannotator.ai afshinm.github.io readrare.com higherlevel.to
Load these 10 websites in OpenURL
If the links do not load, copy the domains above into the bulk URL opener. Imported links retain the specific product or demo paths used in this article.