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Over the last seven days, I built Boomboxr, a head-to-head music trivia game built around satisfying swipes, curated song packs, and competitive progression.
This slice includes a full gameplay loop: earn XP, climb leaderboards, unlock packs, and face bot challenges. Every track is hand-curated across decades or genres for a mix of familiar and fresh.
Featuring player profiles, mock in-app purchases, ranks, seasons, social feeds, seasons, and more: Boomboxr proves a polished, scalable game can come to life in around a week- all entirely inside the Anything platform!
— Rob Kaltenbach
Postmortem thoughts:
This one was really satisfying to bring together. I focused a lot on making sure every design and functional choice felt cohesive and intentional, and it came together in a way that just flows. It was fun exploring how an LLM could align with a clear...
@Robert Kaltenbach you're my hero
@Steven McDaniel thanks 😊
@Robert Kaltenbach very neat and great idea. Keep up the good work.🔥
@Joe Stramaglia thank you kindly!
@Jessica Czarnecki fun to make, fun to play! thanks 🎉
@Robert Kaltenbach Looks Good
@Said Rouah many thanks!
Absolutely stunning and marvelous
This is fantastic, well done 👏
thank you so much!
This is great!
Thank you Jude.
That’s seriously impressive, Rob.
Boomboxr perfectly captures the fun side of competition while keeping it clean and scalable — building this in just a week is no small feat!
Quick question: do you plan to add real-time multiplayer or keep it asynchronous for now?
Thanks for the kind words! The plan is to support real-time multiplayer when both players are active, with asynchronous play as a fallback.
In async mode, the first player’s round — including questions, answers, and timing — is recorded and later replayed for their opponent,...
Looks good🔥
Thank you! Nothing beats the feeling when that UI comes together. 🙌
Nice
thank you, Zion!
Well planned
Thanks so much, my focus was to design a system that could scale beyond this seven day sprint!
Great work
Appreciate it!
Great idea with great features!! 🔥 🔥
Thank you so much 🎉
Looks very unique!
Thanks!
So unique & creative!
Thank you for taking a look, Samantha!
@Robert Kaltenbach This looks really impressive and like something I would love to play.
If I may, though, I have one observation: Your homepage maybe isn't clear enough about what this is. I would get the word "music" in the title somewhere to instantly draw in music lovers and let them know...
Ah, what a good call out. Tunnel vision and the last minute crunch definitely caught me on the web page. I will take this to heart on the redesign. Thank you for your thoughtful feedback!
@Robert Kaltenbach Tunnel vision happens to the best of us. Glad to help.
Thanks for taking a look.
Looks really good for a game design.
Thanks for the kind words!
Fascinating idea and really well executed. Keep up the great work you're doing amazing!
Thanks a lot! 🙌
It looks amazing! I'm so in for this kind of games and apps!
Blown away by everyone's kind words, thank you Adrián!
Nice user-friendly design. Great job!
Amazing
thanks a ton!
Looks great! Let's connect 🔥
Thanks! Always down to connect!
nice work
thank you for checking it out Ayomide!
Well done
This is beautiful stuff and I love the UI.
Thanks for checking it out, Emeelya!
Pretty good
Thanks a lot!
Wow! Now this is epic!
Thank you James! 💯
Wow...looks great
Thanks for checking it out Dennis!
Absolutely stunning and marvelous
Wow! Thanks so much. 😊
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