Every year we create new js13kGames t-shirt designs, and then print and ship them to the winners worldwide for free — and 2019 was no different.

Normally it’s our participants who write post-mortems about their games. This time, we’ve got Steven Lambert writing about his experience building and maintaining one of the most popular libraries in the competition — Kontra.js.

The winners of the eighth edition of the js13kGames competition have been announced. Here’s a brief overview of this year’s competition.

Your feedback is heard. As the competition keeps evolving, we aim to improve the scoring experience by introducing a new voting system this year — your votes will directly determine the final ranking.

For those who already submitted a game in the past, you know that the requirements are straightforward. And yet…

Implementing Web Monetization features in your game and competing with it in js13kGames is easier thank you think. This post will help you get started.

Time flies! It’s the eighth annual js13kGames competition for web game developers launching today at 13:00 CEST, and the theme for this year is: back. You have a full month to create a game that will fit in a zip no bigger than 13KB.

Mozilla’s Mixed Reality team brings a bag full of goodies for the WebXR category this year — you will be able to use Three.js, and win one of three Oculus Quest devices!

Running js13kGames takes a lot of time, and there are still many aspects of the competition which need our attention — we can’t do everything on our own. Luckily, some are easier to help with than the others.

We’re thrilled to announce our brand-new new category this year: Web Monetization, which lets you score extra rewards thanks to our partnership with Coil.

It’s becoming a tradition — having an event in a physical location where we gather around and celebrate the start of the competition together. This time it’s August 17th in Berlin.

Time to start the official preparations for the upcoming js13kGames 2019 competition. Why now? There’s only 13 weeks, 13 days, 13 hours, 13 minutes and 13 seconds left till the start, that’s why!