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Show HN: I built a Jeopardy game maker with buzzer support

https://buzzinga.io/

Sometime in early 2022, my wife and I started watching Jeopardy! regularly, almost by accident. Inspired, I thought it would be fun to create and host my own games with family and friends.

By September 2022, I debuted Buzzinga at a family reunion. Back then, it was just a website running locally on my MacBook. It was a total blast, and I knew this was something the world should enjoy too.

I launched Buzzinga.io in December 2023 and have been rolling out regular updates for our 2000+ users ever since.

Features:

- Built-in buzzer support (phones and physical buzzers) - Automatic scorekeeping - User-friendly host controls - Highly customizable - Supports multiple clue types: text, image, audio, and video

The site does not require sign up to play around with, only to create your own games.

( 69 comments | 89 points | on HN )
Re:Show HN: I built a Jeopardy game maker with buzzer support by bfdm on Sunday July 14, 2024 @10:51AM (#40961295)
This is really nice. Well done!

I've had a jeopardy based toy project on the backburner for several years, with the north star goal of solving the problem I've had with every jeopardy game I've ever played: you need an Alex/host who knows the answer and can judge players right or wrong. This ability to buzz in, be wrong and then have another player respond is fairly crucial to real strategic play.

I get this is for fun and not meant to be "real" jeopardy, but I wonder if you could add support for something like this by allowing a "join as host" option when using the QR code that would reveal the answer and not have a score.

Great work and thanks for sharing it!

Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Sunday July 14, 2024 @10:59AM (#40961338)
In the menu you'll see there is a "Show answer" button. The host can log in on a different tab or device to see the answer to the currently flipped clue.
Re:Show HN: I built a Jeopardy game maker with buzzer support by gamerDude on Sunday July 14, 2024 @11:55AM (#40961630)
I cannot find this button. :( It also took me multiple reloads to find the menu button since it disappears after a few seconds. My eyes are drawn to the board and not the upper left hand corner.
Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Sunday July 14, 2024 @12:07PM (#40961703)
You'll only see it if you're logged in. I'll fix the menu button!
Re:Show HN: I built a Jeopardy game maker with buzzer support by bfdm on Sunday July 14, 2024 @04:07PM (#40962901)
Ah neat, I'll give that a try!
Re:Show HN: I built a Jeopardy game maker with buzzer support by explaininjs on Sunday July 14, 2024 @07:46PM (#40964114)
You mean the question? Everyone should be able to see the answer of the active clue.
Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Sunday July 14, 2024 @08:18PM (#40964294)
Nope. Everyone should be able to see the clue, but not the answer or correct response to the clue.
Re:Show HN: I built a Jeopardy game maker with buzzer support by re on Sunday July 14, 2024 @10:35PM (#40964851)
I believe that explaininjs is making a pedantic/semi-tongue-in-cheek joke about the gimmick of Jeopardy where the clues are "answers" and contestants buzz in to respond with the "question". https://youtu.be/KDTxS9_CwZA?t=156
Re:Show HN: I built a Jeopardy game maker with buzzer support by hunter2_ on Monday July 15, 2024 @12:43AM (#40965324)
It would be pedantic if it were indeed nothing but a joke, but I think the existence of this gimmick forces us to assimilate our non-joking language in order to avoid ongoing problems. Easier to have common ground among participants and onlookers than not. To exclude yourself, should you wish, simply stick to clue/response.
Re:Show HN: I built a Jeopardy game maker with buzzer support by ilaksh on Monday July 15, 2024 @03:06PM (#40970576)
Seems like a strong LLM could act as a host.
Re:Show HN: I built a Jeopardy game maker with buzzer support by PaulMest on Sunday July 14, 2024 @09:23AM (#40960824)
Very cool! I built a no-code version of this for my friends' birthdays where all of the clues were about them (inside jokes, dumb bets, catch phrases, etc). I just printed out categories in a grid on a sheet of paper and had a bunch of questions listed out in OneNote on my phone and manually kept score. I didn't put penalties in place if somebody got it wrong to encourage people to participate vs just optimizing for score. "Jonpardy" and "Joshpardy" are two of our friend groups most cherished and repeatedly cited events from the past 10 years.

I've dabbled with the idea of creating some real implementation of this. I most recently put together an @Midnight / After Midnight no-code game for a friend's bachelor party. The buzz-in mechanics and score-keeping are somewhat similar. Maybe you could repurpose your core logic for several different game show themes?

Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Sunday July 14, 2024 @09:32AM (#40960859)
Yeah, I made a category for a game night with friends called “Who wrote this Facebook status in ‘09?”, which was very popular.

Repurposing the logic for different game shows is definitely interesting. Although I’ve matured Buzzinga in the last seven months, there’s definitely still room to improve, but eventually I can see this transition!

Re:Show HN: I built a Jeopardy game maker with buzzer support by hoistbypetard on Sunday July 14, 2024 @11:45AM (#40961585)
That looks like a lot of fun... can you share a little about what you used to make phones work nicely as buzzers?
Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Sunday July 14, 2024 @12:24PM (#40961780)
So overall, the site including the buzzer page uses websockets for (close to) real-time client-server communication.

Obviously latency can be an issue, so my non-perfect B+ solution is to essentially calculate the round trip of the buzz, divide it by 2, and subtract it from the server time.

client ------------ pingTime ------------> server

client <----------- serverTime ----------- server

roundTrip = pingTime + pongTime

buzzTime = serverTime - (roundTrip / 2);

The server time is always the source of truth since client times can vary. Not using NTP which could possibly be more accurate.

Re:Show HN: I built a Jeopardy game maker with buzzer support by ddtaylor on Sunday July 14, 2024 @09:49AM (#40960981)
Very fun! I can't wait to give it a run through when I finish some of the questions. I have really enjoyed the "Hacker Jeopardy" at Derbycon and a few others and I will enjoy the opportunity to play without being forced to drink an intentionally warmed bottle of smirnoff as punishment for getting the wrong answer =)
Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Sunday July 14, 2024 @10:03AM (#40961041)
Ha, never heard of this event. Watching the one from DEFCON 31 now. Did you play in that one?
Re:Show HN: I built a Jeopardy game maker with buzzer support by ddtaylor on Monday July 15, 2024 @10:02PM (#40973119)
I don't frequent DEFCON much and I haven't found much of the Derbycon ones online. Derbycon was held in Louisiana and stopped around 2019 I think.

https://en.wikipedia.org/wiki/DerbyCon

Re:Show HN: I built a Jeopardy game maker with buzzer support by willcipriano on Sunday July 14, 2024 @11:45AM (#40961583)
I have no notes, this is really dialed in.
Re:Show HN: I built a Jeopardy game maker with buzzer support by jonmb on Sunday July 14, 2024 @10:07AM (#40961056)
For a few years I was hoping someone would create something like this, or I’d eventually do it myself. Thank you!
Re:Show HN: I built a Jeopardy game maker with buzzer support by RockRobotRock on Sunday July 14, 2024 @09:17AM (#40960792)
This is awesome! Is there any chance of open source?
Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Sunday July 14, 2024 @09:33AM (#40960865)
No plans at the moment, but I’m not fully against the idea.
Re:Show HN: I built a Jeopardy game maker with buzzer support by iJohnDoe on Sunday July 14, 2024 @10:16AM (#40961112)
Great job! Really well done. Congrats on launch!
Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Sunday July 14, 2024 @11:16AM (#40961423)
Thank you!
Re:Show HN: I built a Jeopardy game maker with buzzer support by encomiast on Sunday July 14, 2024 @10:52AM (#40961299)
This seems like a cease and desist letter waiting to happen. Are you worried that using the name “Jeopardy” and styling it so closely to the actual game might bring Sony lawyers knocking on your door?
Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Sunday July 14, 2024 @11:04AM (#40961368)
It's possible, but there are other jeopardy game maker sites out there that charge money and have existed for 5-10+ years that do similar things but with "Jeopardy" actually in their name (e.g. jeopardylabs)

Worst case, they do, and then I know I made a good product.

Re:Show HN: I built a Jeopardy game maker with buzzer support by dsr_ on Sunday July 14, 2024 @10:50AM (#40961289)
You're going to want to change the wording to "Jeopardy-style" rather than implying that it's a Jeopardy product.

I would also recommend changing the default color scheme; it's inviting a lawsuit.

Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Sunday July 14, 2024 @11:09AM (#40961399)
Yeah, the wording is a good point. I'll think about the color scheme.
Re:Show HN: I built a Jeopardy game maker with buzzer support by CodeWriter23 on Monday July 15, 2024 @11:30AM (#40968736)
IANAL but I had one who advised us our Trade Dress was defendable.
Re:Show HN: I built a Jeopardy game maker with buzzer support by aloisdg on Sunday July 14, 2024 @10:49AM (#40961277)
Is the website open source?
Re:Show HN: I built a Jeopardy game maker with buzzer support by remram on Sunday July 14, 2024 @01:51PM (#40962267)
That's funny, I too made a phone-buzzer app to watch Jeopardy with the in-laws. All it does is pause the video on the laptop for 10 seconds when someone presses the button on their phone, and show their name. On the plus side it works for any YouTube/PeerTube/local-file video, on the minus side no score-keeping or even checking of the answer.

https://github.com/remram44/video-buzzer

I think we only used it once, years ago.

Re:Show HN: I built a Jeopardy game maker with buzzer support by demondemidi on Sunday July 14, 2024 @01:51PM (#40962271)
When I was in high school in the mid 80s I was in the av club and we filmed things for local access cable. We made a jeopardy game on a Commodore 64 and converted a joystick into three buttons with latches to prevent ties. We broadcast three episodes and had the most feedback to the local paper of any local access tv show. We were proud. Fun to still see kids doing this.
Re:Show HN: I built a Jeopardy game maker with buzzer support by staplers on Sunday July 14, 2024 @02:18PM (#40962403)
Make this a tvOS app and it would be perfect. Parties aren't fun if you have to lug out your laptop and hook up the hdmi to the tv.
Re:Show HN: I built a Jeopardy game maker with buzzer support by jmpavlec on Sunday July 14, 2024 @03:57PM (#40962837)
I've been working on a similar-ish project with native Chromecast support and Amazon TV and using phones/tablets/laptops as controllers. You can give it a look at https://gametje.com (no login required, just continue as guest). It's less jeopardy/trivia and more like Jackbox. Currently has 3 games with the 4th almost done (available for Alpha testers). Was planning on sharing it on HN soon. Playable in 9 languages.
Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Sunday July 14, 2024 @03:15PM (#40962672)
This is a great idea.
Re:Show HN: I built a Jeopardy game maker with buzzer support by hk1337 on Sunday July 14, 2024 @02:24PM (#40962431)
That's really cool. I always liked trying to do interactive applications like this.

What's the story behind the name, "Buzzinga" aka Bazinga?

Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Sunday July 14, 2024 @03:11PM (#40962651)
When I was thinking of a name I thought, well, what do you do when you’re playing? Buzz in. So I just thought “Buzzinga.” That’s the origin story.
Re:Show HN: I built a Jeopardy game maker with buzzer support by ortusdux on Sunday July 14, 2024 @04:46PM (#40963115)
Any chance the name clashes with WB's trademark of the Bazinga! catchphrase?

https://tsdr.uspto.gov/#caseNumber=85210239&caseType=SERIAL_...

Re:Show HN: I built a Jeopardy game maker with buzzer support by hiatus on Sunday July 14, 2024 @05:33PM (#40963342)
No. The trademark you linked to is for "Bazinga!" with an exclamation mark.

> Mark Literal Elements: BAZINGA!

Re:Show HN: I built a Jeopardy game maker with buzzer support by apgwoz on Sunday July 14, 2024 @02:40PM (#40962533)
“I’m a lawyer for Sony Pictures Television, producers of the hit syndicated television show “Jeopardy.” While we appreciate our fans, we cannot allow this to continue. You must cease and desist” arriving in your inbox in 3…2…
Re:Show HN: I built a Jeopardy game maker with buzzer support by jdiff on Sunday July 14, 2024 @05:00PM (#40963189)
Lots of these exist out on the open net, I don't know why this guy would be the guy to bring the wrath of the mediatech industry down upon him.
Re:Show HN: I built a Jeopardy game maker with buzzer support by apgwoz on Sunday July 14, 2024 @07:53PM (#40964144)
I’m not familiar with all of the ones that already exist, but this is clearly trying to replicate the Jeopardy look and feel. Back in the NES days, there were licensed Jeopardy cartridges and board games. Maybe things haved changed… but I’m pretty sure they still protect at least some of the Jeopardy brand.
Re:Show HN: I built a Jeopardy game maker with buzzer support by jdiff on Sunday July 14, 2024 @09:10PM (#40964519)
The others do likewise. And actually include the word "Jeopardy" in their own names.
Re:Show HN: I built a Jeopardy game maker with buzzer support by apgwoz on Monday July 15, 2024 @12:06AM (#40965203)
There you go then. I guess they don’t care.
Re:Show HN: I built a Jeopardy game maker with buzzer support by netik on Sunday July 14, 2024 @02:54PM (#40962585)
fantastic! I’ve been building game show buzzers and various PCBs for them for about ten years and used them at a lot of events.

any chance you’ll open source this?

My boards and code live here:

https://github.com/netik/rpi_gameshow

Re:Show HN: I built a Jeopardy game maker with buzzer support by poopsmithe on Sunday July 14, 2024 @03:02PM (#40962616)
Every other anime convention I go to has a fan panel featuring an interactive Jeopardy-style game. It's usually built using powerpoint or a half baked webapp that crashes the moment the audience connects. Would love to see more of them use buzzinga instead!
Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Sunday July 14, 2024 @03:17PM (#40962678)
I’d like to make an offline mode so you can connect physical buttons/buzzers and not have to worry about connectivity/latency, etc.
Re:Show HN: I built a Jeopardy game maker with buzzer support by sadeshmukh on Sunday July 14, 2024 @04:08PM (#40962905)
only one I've seen so far is buzzin.live, which acts only as a buzzer (pretty good one at that)
Re:Show HN: I built a Jeopardy game maker with buzzer support by thelazyorcas on Sunday July 14, 2024 @05:51PM (#40963457)
This is super cool!

I'm going to try in the next game night with my friends. Will let you know how it goes.

Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Sunday July 14, 2024 @07:16PM (#40963962)
Excellent!
Re:Show HN: I built a Jeopardy game maker with buzzer support by indus on Sunday July 14, 2024 @07:09PM (#40963910)
Very cool! Love the project. Thanks.

I watch Jeopardy a lot -- that bartender from New York achieving 9 days of wins, was an amazing thing to watch.

Curious: are you using questions from the game or built your own database?

Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Sunday July 14, 2024 @07:21PM (#40963983)
There’s only two public boards: “Animals”, which I clobbered together awhile ago just as a demo for folks to test Buzzinga with.

I later added the “Millennials” game, which I created myself and played with friends on a game night.

Neither have clues from the Jeopardy! show itself AFAIK.

Re:Show HN: I built a Jeopardy game maker with buzzer support by indus on Sunday July 14, 2024 @08:09PM (#40964244)
is there a way to add our own questions/board?
Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Sunday July 14, 2024 @08:18PM (#40964302)
Yes, you just hit “Create new board” on the play.buzzinga.io page which will prompt you to sign up or log in.
Re:Show HN: I built a Jeopardy game maker with buzzer support by re on Sunday July 14, 2024 @10:41PM (#40964876)
Do you implement the Jeopardy!-style buzzer lockout or can contestants hit their buzzers as much as they want without penalty? https://www.jeopardy.com/jbuzz/behind-scenes/how-does-jeopar...
Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Sunday July 14, 2024 @11:09PM (#40964973)
Yes. If a team buzzes in and the host marks their response as incorrect, they can’t buzz in again.
Re:Show HN: I built a Jeopardy game maker with buzzer support by re on Sunday July 14, 2024 @11:25PM (#40965038)
I meant this part:

> If a contestant attempts to ring in before the gameboard lights activate, the system locks out their signal for a quarter of a second.

This discourages contestants from repeatedly tapping the buzzer before the question has finished being read.

Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Sunday July 14, 2024 @11:32PM (#40965069)
Oh, I see. No, not yet.
Re:Show HN: I built a Jeopardy game maker with buzzer support by lame-lexem on Monday July 15, 2024 @12:39AM (#40965309)
There is actually a pretty cool clone of Svoja igra (russian jeopardy clone <https://ru.wikipedia.org/wiki/Своя_игра>) sigame <https://vladimirkhil.com/si/game> which is popular with russian streamers and is open source. It is available as a web and native application, and has an extensive library of packs (sets of questions, tho many of them are in russian).
Re:Show HN: I built a Jeopardy game maker with buzzer support by notpushkin on Monday July 15, 2024 @01:49AM (#40965567)
This is cool, congrats on launching!

Jeopardy is an extremely popular “playing in Discord with friends” activity in Russia / CIS (called Svoya Igra here, lit. “own game”, or just svoyak for short). I think this is the most popular app of this kind here: https://vladimirkhil.com/si/game

Re:Show HN: I built a Jeopardy game maker with buzzer support by akam4n4n on Monday July 15, 2024 @04:12AM (#40966062)
Hi! this looks amazing. wanted to confirm what the pricing will look like? i want to try it out in a college quiz contest.
Re:Show HN: I built a Jeopardy game maker with buzzer support by prakhar897 on Monday July 15, 2024 @05:54AM (#40966480)
Great Implementation!! Jackbox games are ever more popular with remote work. There's a huge market for games like these.

I think bundling a few of these and selling B2B to corporates as FunFriday activities would bring huge sales.

Re:Show HN: I built a Jeopardy game maker with buzzer support by RNAlfons on Monday July 15, 2024 @08:19AM (#40967169)
You should pitch this for the next Chaos Computer Congress. They used to play "Hacker Jeopardy" with some self hosted solution. Yours looks much better.
Re:Show HN: I built a Jeopardy game maker with buzzer support by password4321 on Monday July 15, 2024 @08:24AM (#40967204)
Chrome+WebUSB should allow supporting Buzz! USB buzzers.

https://en.m.wikipedia.org/wiki/Buzz%21

https://github.com/bbeardsley/BuzzIO

Re:Show HN: I built a Jeopardy game maker with buzzer support by hobs on Monday July 15, 2024 @09:10AM (#40967580)
A classic thing I was looking for back when I was doing technical training, well done.
Re:Show HN: I built a Jeopardy game maker with buzzer support by richwater on Monday July 15, 2024 @10:20AM (#40968125)
Wow, get a few of these bad boys and you're in business!

(Physical usb buzzers)

https://www.delcomproducts.com/productdetails.asp?PartNumber...

Re:Show HN: I built a Jeopardy game maker with buzzer support by carterdmorgan on Monday July 15, 2024 @11:30AM (#40968739)
Love it! It's not really Jeopardy without the buzzers, is it?
Re:Show HN: I built a Jeopardy game maker with buzzer support by racl101 on Monday July 15, 2024 @12:29PM (#40969283)
That's awesome! Gotta check this out.
Re:Show HN: I built a Jeopardy game maker with buzzer support by jjbinx007 on Monday July 15, 2024 @04:23PM (#40971180)
You've made it onto Digg's homepage so expect plenty of traffic https://digg.com/gaming/link/jeopardy-buzzinga-at-home-game?...
Re:Show HN: I built a Jeopardy game maker with buzzer support by Wolfmans55 on Monday July 15, 2024 @05:34PM (#40971657)
Wow, thanks for the heads up! Was not expecting this...