
Playground — Fabraix
Test your prompt injection skills against AI agents in an interactive competitive challenge.
ibrahim_abdu777 · HN
We are giving away $100K > over the next 12 months to hack AI agents
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Test your prompt injection skills against AI agents in an interactive competitive challenge.
ibrahim_abdu777 · HN
We are giving away $100K > over the next 12 months to hack AI agents

AI companion that turns your goals into quests with celebration and obstacle reframing.
@dvaldez3000 · X
Currently working on Koa. Koa turns your real ambitions into an epic quest, with an AI companion traveling alongside you." That's the seed the whole conversation grows from.

Score penalties past a keeper in this five-round arcade shootout.
@mark_ssesa9683 · X
Check out what I just built with Lovable!

Free unblocked browser shooting game with arcade-style action.
Funny Shooter 2 — enjoy unblocked shooting games for free! Dive into exciting gun games with funny shooting action. Perfect for shooter game fans!

A rhythm game where you distinguish fake instructions and follow real ones to the beat using arrow keys.
Blue White Flag — Play Blue Flag White Flag Games Online Free

Paste HTML and play it as a presentation instantly, shared via one link with no download or signup.
oandre · HN
Slidum – A player for the HTML presentations AI writes

Play chess online or against AI, with mini-games deciding every capture.
@GeorgeGognadze · X
Hi, I’m building the new chess version where mini games decide the capture @dualchess

Create audiobooks, podcasts, and marketing content using AI voice cloning.
AI Voice Cloning — AI 声音克隆

Play 7 Takes, a card game of nerve and memory, against an AI dealer.
u/termicrafter16 · Reddit
A friend taught me a Slovenian card game two days ago. GPT-5.6 Sol helped me turn our argument into an AI opponent. Two days ago, a friend taught me Sedmice, a traditional card game we play in Slovenia. The rules are simple, but we quickly got into an argument about the best moves. Naturally, I decided the reasonable way to settle it was to build an AI opponent. I wrote out the rules, project specification, architecture, and implementation details, then handed the logic to GPT-5.6 Sol. Ab

An FPS game built as a parent-friendly alternative to Roblox.
davitb · HN
I'm a father of two, 7 and 12. They are obsessed with Roblox, especially Rivals. Like a lot of parents, we did not love it. We tried the usual things: block it, limit it, set timers." It became a daily battle, a lose-lose situation. So I flipped the problem. Instead of fighting what they loved, I decided to lean into it, but with a twist. Why just play an FPS when you could build one together? My kids became the PMs. Claude and I became their engineer. I was shocked by how fast we moved. We picked a name, Cooked and started building. Get in. Lock in. Get cooked! In the first 3 hours, we had an actual FPS we could play together in the browser. Next day I invited my friend's two kids over. Suddenly, I had four PMs. We had 3 laptops, 1 iPad and 1 iPhone. So in 30mins we added mobile support and could play all 5 together. The kids would ask for features: "Can we have a rocket launcher that knocks people off the map?" "The knife should stab faster when you hold it." I know al

AI-powered English learning game where kids photograph their schedule to generate vocabulary lessons through animal villagers.
@lzhgus · X
My kid goes to an English-only school in the US, but we speak Chinese at home. So I built her a tiny Animal Crossing-style island to learn English 🏝️ Snap a pic of the teacher's daily schedule → AI turns it into a lesson pack → she learns words from animal villagers, shakes apple trees, goes fishing 🎣 100% hand-written Three.js, zero assets, no backend. Try it:

An endless runner game where you play as the Busy Bull, collecting $JAMES tokens while avoiding market hazards on Monad.
@0xNftLegend · X
I built a game for $JAMES lovers. The Busy bull of Monad. Thanks @buildanythingso for inspiring me. My first Vibe Coded game. with no coding knowledge at all.