Winners of js13kGames 2021 were announced - congratulations to the authors of the best entries, and to all who participated and submitted their games to the tenth edition of the competition this year!

We had a total of 223 entries this year - here are the lists of all the…


Similar to how we organized it last year, we’re going to have an Awards Ceremony this year as well to announce the winners, but also showcase interesting entries, share experts’ feedback, win swag in a quiz, and much more.

Join us, if you want to be amongst the first ones who got to know the winners!

It’s going to happen online next week, on Tuesday October 5th, starting at 6 PM CET (GMT+2) - make sure to join the event on Meetup! Our host for the evening will be Sascha Depold from eBay, and the session will be recorded to be published later on on our YouTube channel.


Roadroller tool was the big hit of this year’s js13kGames competition - it helped many developers squeeze in extra kilobytes into their entries. The author, Kang Seonghoon, agreed to write all about it.

(Korean version of this article can be found here: 한국어)

Kang Seonghoon: js13kGames this year is special…


Voting on the submitted entries by participants starts now, same as experts giving feedback to your games. The voting app is at vote.js13kgames.com, and it runs till October 4th.

This will work the same way as in 2019 and 2020 - rounds of “1 vs 1 battles” between entries, where…


We’re opening the submit form and offering something new this year - the “Unfinished” category for all the projects that were not completed, but you’d want to share the progress anyway.

First things first: after a decade of running the website on the exact same hosting platform we had to…


I know this comes out quite late as we’re close to the end of the competition already, but it’s better late than never, right? There’s still some time left if you’d like to try adding the decentralized ingredient to your compo entry.

This should give you a good intro as…


The video recordings of the kick-off meetup that happened on Friday 13th and the online workshop from Monday 16th are already available to be watched on our brand new YouTube channel for whose who missed them or couldn’t attend.

The meetup revolved around introducing new things in this year’s competition, and sharing tips and tricks useful to build a game within the given size limitation.

The workshop, on the other hand, offered a learning experience of building an Asteroids clone using the Kontra.js micro-library.


Friday 13th? There’s no better time to start the tenth edition of the js13kGames online competition! You have a whole month to build an HTML5 game within the 13 kilobyte zip package and win some cool prizes as well.

What’s the theme? Check out the announcement video (13 seconds long!)…


Decentralized is a brand new category this year, and the new rules might sound tricky, especially for a competition where you try to squeeze in a tiny amount of code to a single zip package, so below are the clarifications that will hopefully help you understand what you can do…


Since the very beginning, the js13kGames competition was all about the community - there was never a marketing budget, and the number of submitted entries heavily relied on past participants sharing their experiences with their folks.

It’s our tenth edition of the competition this year, and I’d love to celebrate…

Andrzej Mazur

HTML5 Game Developer, Enclave Games indie studio founder, js13kGames competition creator and Gamedev.js Weekly newsletter publisher.

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