Life & fun · alternatives · 2026
24 alternatives to Playing Piano with Prime Numbers
Hi HN, I was already building a breakout game[1] just for fun, but then I thought—what if the bricks were news? So now, every time you smash a brick, you get a post and have to decide: read it or toss it. The idea came from realizing I skim through news way too fast, often skipping things that don’t immediately interest me. This was my way of slowing down and giving those overlooked posts a fighting chance. Give it a try! I also wrote a short post [2], detailing the physics behind the game. I spent quite a bit of time just fine-tuning the bounce logic: adjusting angles and adding random…
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1IM
This is the first iteration of a short game I’m making that tries to interactively explain some of my favorite math questions / ideas. My goal is mostly to get the player curious and not necessarily to explain absolutely everything. There were a lot of fun technical parts to building this: - For implementation reasons, it’s much easier if the lines all have integer intersection points with each other. To do this, when a new line is added I “cheat” by rounding intersections to integers and then splitting the old lines at the intersection into new linds (with potentially different slopes)…
2024 · rahulilango.com · its alternatives →
- 2
Hey, maker here. After launching a daily word search game, I randomly thought of this math game while driving. Finally got around to making it and I think it turned out pretty cool. It’s a math search game that’s meant to help you practice your quick addition, subtraction, multiplication, and division skills. I’m hoping it’ll help people (even those like me who aren’t big on math) learn and increase their speeds. (There are also some settings you can enable to make the game harder) If you try it out, please let me know if you found it fun, if you have anything you’d like me to add, or if you…
2024 · worchle.com · its alternatives →
- 3
“Lend Me Your Ears” is an interactive web-based game inspired by the classic Simon toy (originally by Milton Bradley). It presents players with a sequence of musical notes and challenges them to reproduce the sequence using either an on-screen piano or a connected MIDI keyboard. Each correct response leads to a progressively more difficult sequence, testing the player’s concentration, memory, and pitch recognition. The game features two modes: - Simon Mode (focuses on auditory recall) - Practice Mode (displays standard sheet music notation to support learning) The game also includes options…
Jan 2026 · lend-me-your-ears.specr.net · its alternatives →
- 4
Hey guys I've been playing the guitar for many years but I felt like I had hit a wall and wasnt making progress. One of the things I realized was holding me back was unfamiliarity with the fretboard. I'd often find myself in situations like “Uhh…Where’s the C# here?” “Where’s the flat-3rd of this root on the 4th string?” “Sure would be nice to know the closest min7 triad shape to play over here..” I tried memorizing the fretboard the obvious way but it extreeemly boring for me. Being a developer, I decided to turn it into a game. I'd love for you guys to try it out and let me know what you…
2023 · fretboardfly.com · its alternatives →
- 5
Hey there! I'm the brains behind the math crossword game on my site. This game is all about making math a little more fun – users just drag and drop numbers to fill in the blanks and move on to the next level if they get it right. Let me know if face any issues or have any suggestions! :)
2024 · scientific.place · its alternatives →
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- 8
I've been playing with this for quite some time and I think it's finally ready for public consumption. All feedback welcome.
2025 · madmonk13.github.io · its alternatives →
- 9
Hello HN, last week, I stumbled over an old project of mine called Click The Number. I built it about six years ago to compare my clicking and reaction speed with that of my friends. The idea is simple – just click on the numbers in orders as fast as possible. I couldn't resist and rebuilt a lot of parts again, making them a bit nicer. I updated the design and added some features like a personal high score. It lets you keep track of your own best time (which makes it ever so _slightly_ more addictive). I'm curious what you think about it, and if you have any ideas where I could take it. Have…
2022 · projects.marcnitzsche.de · its alternatives →
- 10
Hey everyone, I'm Fabio, a very long time lurker here. Today I want to celebrate and share with you, again, a game that I conceived more than 8 years ago. I shared it last week with all its history (if you're curious) [1], but it just stayed in the "shownew" and never reached the main "show" page, hopefully this time it'll do better (:crossed_fingers:)! What changed since last week? Today I've also published the mobile apps for both iOS and Android (last week it was just web), which are also my first mobile apps ever. So I believe it's still a worthwhile post and something to show :) I'd…
2024 · fiftygame.com · its alternatives →
- 11
I built a procedurally generated word-search game where the puzzle never ends - as you scroll, the grid expands infinitely and new words appear. It’s designed to be quick to pick up, satisfying to play, and a little addictive. The core game works without an account using the pre-defined games, but signing up allows you to generate games using any topic you can think of. I’d love feedback on gameplay, performance, and whether the endless format feels engaging over time. If you try it, I’d really appreciate any bug reports or suggestions. Thanks in advance!
Dec 2025 · endless-wordsearch.com · its alternatives →
- 12
Well HN, I've finally produced something I think is worthy of sharing, but I didn't do it "in a weekend". Yeah, it's an iOS puzzle game. And yeah, it's a game I built because I wanted to play it rather than based on market research, so all this sort of makes it the antithesis of a popular HN post. But whatever. Still hoping for some of that patented (har har) expert HN feedback. Critique any part of it except the music. Also, PM me for upgrade codes, or I can post some here if there's any interest. Download (it's free):…
2012 · itunes.apple.com · its alternatives →
- 13MN
This is an idea I’ve been kicking around for a long time, and I decided to finally code it up. In the same way that Scrabble decomposes words into letters, what if there was a game that decomposed letters into sub-shapes? There’s a lot of directions this could go, and I’m still exploring the possibility space. Enjoy. Suggestions welcome. It doesn’t have a real name yet.
2024 · shovemedia.com · its alternatives →
- 14
I made this as a side project because I've always loved music but never had a real instrument or lessons. It started as a simple piano to play online, but grew into something more: - 100% free, no installation or login required - Multilingual interface (EN/ES/PT, more coming) - Works on desktop and mobile - Step-by-step mode to learn songs interactively Try it here: https://pianoeletronico.com.br/en It’s not professional software, just a free and fun way to make music. Feedback and ideas are very welcome!
2025 · pianoeletronico.com.br · its alternatives →
- 15WB
Hi HN, I love building small games (as Pong, Wordle, Tetris, etc.), but they're never quite unique enough to justify their own site. So I built boring.game - a daily "boring" game where the social mechanics (predicting your score, challenging other users) is more interesting than the game itself. I started a HN team if you want to compare your results: https://boring.game/invite/SRhyUStjin You can also play all daily games without signing up, if that is what you prefer. Built with SvelteKit (first time using Svelte - loved it!). Would love feedback on both the concept and…
2025 · boring.game · its alternatives →
- 16
Hello HN! It seems there has been an influx of MIDI projects as of late. I myself also got inspired to work on one last January. I had become frustrated in not being able to read my old sheet music without counting the notes mentally. I thought there had to be an easier way to learn them, I surveyd some apps but none of them felt right to me. So I decided to build one myself and learn some music theory too. I'm quite happy how it turned out, in the end. My sheet-reading has improved substantially although playing and remembering notes is two different things. It works best if you use MIDI…
2024 · midi-note-trainer.teemukoivisto.xyz · its alternatives →
- 17MN
Hey folks, wanted to share my new logic game I created. I hope you'll enjoy it. It looks easy, but it's only illusion. The goal is to make 210 points on all levels: easy - doable, medium - not sure, hard - I'm happy when I make over 80...
2024 · make210.com · its alternatives →
- 18
Hello HackerNews, I'm Kaamkiya, the author of this program. It's a collection of minimal games made for terminals, like 2048, Hangman, and even two player games like pong. They're all text-based, but they can actually be quite fun. If you want to test it right now, you can do this: go run github.com/Kaamkiya/gg@latest I started this project out of boredom, honestly. I was bored, and when I'm bored I like to code or play video games. So I coded video games. I kept them really minimal though, because I'm not great at gamedev and thought it would be easier to contribute to text-based…
2024 · github.com · its alternatives →
- 19
Every one can play the piano, this is a music game
2019 · apps.apple.com · its alternatives →
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- 21PA
Hi hn, Its been a while since my kid has been dreaming to make videogames, as you know, the entry bar is high, too many technical details are involved. A few months ago, we started making games, we have tried many different ways, from dragging blocks to write code with a high-level library to make it simple, it is still too much work. Getting into the AI boat, I decided to give it a try for making games, turns out that it works super nicely, still, you still have many technical concepts involved, what language should the game be written in? where do you store the file/assets? how do you…
2024 · playcodeai.com · its alternatives →
- 22
I've just released an iOS app that contains a few simple music games. I hope to add more in the future, and to improve the existing games. Over the long run I hope I'm able to build experiences that are both fun and help you become a better musician. It's rough around the edges, and very early, but feedback and feature requests are still welcome. On the marketing page I have an email list and a way to contact me, so I'd love thoughts. No login, no subscription, no network required, no analytics, 5 MB binary iOS link:…
Nov 2025 · apps.apple.com · its alternatives →
- 23IM
So, I'm learning VIM and made this yesterday, I pretend to increment it as I learn new stuff. You move with HJKL and that's it for now. Don't let the sublimes consume you. http://worms.io/vimwarrior/
2016 · its alternatives →
- 24
I'm doing some fun chess-related programing during my sabbatical, and taking the opportunity to dive down rabbit holes I'd avoid for in a work setting. Found out interesting stuff from old ANSI DEC escape sequences to sixel graphics that are useful today.
2024 · github.com · its alternatives →
Also compare
- I made a puzzle game that gently introduces my favorite math mysteries alternatives
- I made a web game that makes practicing basic arithmetic fun alternatives
- I made a memory game to teach you to play piano by ear alternatives
- I created a game to memorize the fretboard alternatives
- I made an interactive math crossword puzzle with infinite levels alternatives
- Is This Prime? alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →