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Hey Indie Hackers! I recently built Promptle, a game where you try to guess the hidden AI prompt behind an image. You see an AI generated image and must figure out what prompt created it. The closer your guess, the more points you earn. I also added a PvP mode where two players race to guess the prompt in 2 minutes. Would love feedback from the community! Try it here: The scoring problem you mentioned is really interesting. Semantic similarity works for free-text guesses, but prompts aren't just bags of words. A prompt like "cyberpunk cityscape at sunset, neon lights, rain" has distinct components: subject, style, lighting, atmosphere. Two guesses can match on meaning but miss on structure entirely. That's something I keep running into from the opposite direction. I'm building flompt, an open-source visual prompt builder where you decompose prompts into typed blocks (role, constraints, output format, etc.) and compile them to XML. The core idea is that prompts have internal structure that matters. For Promptle, you could potentially score along those dimensions separately. "Got the subject right but missed the style" is way more useful feedback than a single similarity score. It would also teach players faster because they'd learn which prompt components they're weak at. The PvP timer is a smart move. Competitive pressure forces you to think about what matters most in a prompt, which is basically prompt engineering in disguise. Open-source if you're curious: https://github.com/Nyrok/flompt Its so good and addicting!! loved it I'm really glad you liked it! Thank you! Nice Really nice UI! This is such a clever concept, Irtiza. The idea of making people reverse-engineer the prompt is not just fun, it's actually educational , you start to understand how prompt phrasing affects output. The PvP mode sounds like chaos in the best way. Quick question: how are you scoring "closeness" for the guesses? Is it based on keyword matching, semantic similarity, or something else? That feels like the trickiest part to get right. I'm building in a similar space but different angle , FontPreview.online helps designers test fonts with their own text, check licenses, and analyze brand personality. Different problem, same builder energy. The 2-minute race mode is genius. That kind of time pressure makes it addictive. Congrats on the launch , will definitely try it out! Thank you, I really appreciate that! Yeah, the educational side of it was actually something I realized while building it. When you try to guess the prompt, you start noticing how small wording changes can affect the image a lot. For scoring, it’s not strict keyword matching. It’s more about how close the meaning of the guess is to the original prompt. So if someone phrases the same idea differently, it can still score well. I’m still tweaking that part though, because getting “closeness” right is definitely the hardest part. FontPreview.online sounds cool by the way. Always nice to see other builders working on tools that solve real problems. And glad you liked the 2-minute race mode! Thanks, Irtiza - really appreciate that! And yeah, the semantic scoring approach makes so much more sense than keyword matching. Prompts are about ideas, not exact words. Getting that "closeness" right is a fascinating problem, almost like building a tiny search engine for meaning. The educational angle is a happy accident, but it's also what makes it sticky. People will keep playing because they're learning without realizing it. Glad the 2-minute race mode landed, sometimes constraints create the best kind of pressure. If you ever want to bounce ideas about the scoring algorithm, happy to lend an ear. Always love chatting with fellow builders. why is this so addictive..... :) Just one thing... in pvp, once I have entered my word and it matches the cursor (text) moves away from the text box.. I have to reclick the text box so that I can start typing again... Great Idea, amazing execution.. keep up the amazing work Thanks for pointing that out! That definitely sounds like a small focus bug in the PvP input. It should stay active so you can keep typing without clicking again. I'll take a look and fix it. Really appreciate the feedback . Also, really glad you're enjoying it, haha! nice. good idea Thanks!! Wow let me try my luck😄 Were you successful? :D Cool idea the concept is instantly intriguing. The PvP mode is especially smart because it adds urgency and competition, which can make it much more engaging. One thing I was wondering while checking it out: games like this often become even more addictive when the moment of discovery is really clear and exciting for the player especially when they see how close their guess was compared to the actual prompt. Curious have you experimented with showing that reveal moment in a more visual or dramatic way? Thanks, I really appreciate the thoughtful feedback! You’re absolutely right about the reveal moment. Right now players do get to see the