js13kGames

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All 317 games from js13kGames 2026

The fifteenth yearly edition of the js13kGames competition wrapped up submissions on September 13th, and this year we ended up with an impressive 317 games! Developers had exactly one month between August 13th and September 13th to build a web game fitting into a tiny 13 kilobyte zip package. As…Read…

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js13kGames 2026 started!

17th August 2026

The fifteenth yearly edition of the online web game development competition where the challenge is to build a web game fitting into a 13 kilobyte zip package, js13kGames, started August 13th, and the theme this year is: Unicorns and Rainbows. You have a whole month to create and submit your…Read…

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js13kGames 2025 winners announced

20th October 2025

The winners of the fourteenth edition of the js13kGames competition were announced some time ago already – let’s look at the best games submitted this year. Those are the thirteen best overall games from js13kGames 2025: CLAWSTRIKE by Rémi Vansteelandt Cat Survivors by Elias Ku and Alexandra Al Witchcat by…Read…

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Fourteenth edition of the js13kGames competition started already

15th August 2025

The online competition for web game developers trying to squeeze an entry into a 13 kilobyte zip package since 2012 started as always on August 13th, and you have a whole month until September 13th to submit your entry on a given theme: Black Cat. There are more than twenty…Read…

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V Shaders challenge winners from Gamedev.js Jam 2025 announced

19th June 2025

Out of the four original challenges in Gamedev.js Jam 2025, where the winners from the first three were presented on May 11th, the V Shaders challenge had an extended deadline, and now those best entries are finally out as well. This year’s Gamedev.js Jam 2025 brought many creative highlights, but…Read…

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js13kGames 2025 kicks off in two months

16th June 2025

The js13kGames competition is returning this August for its 14th edition – and yes, it’s all about building a JavaScript game under 13 kilobytes in size. The challenge will begin on August 13th, 2025, so if you’re into tiny, clever, and creative web games, now’s the perfect time to start…Read…

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New Gamedev.js Jam 2025 t-shirt: Balance!

20th May 2025

New t-shirt design landed in our online Shop following the Balance theme, so you can represent Web Game Development with the cool swag. This means we already have five different t-shirt designs for you to pick from: Gamedev.js Jam Gamedev.js Weekly Gamedev.js Jam 2023: Time Gamedev.js Jam 2024: Power Gamedev.js…Read…

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Gamedev.js Jam 2025 winners announced!

10th May 2025

Voting to pick the winners in Gamedev.js Jam 2025, the sixth yearly edition of an online competition for web game developers has wrapped – let’s see the winners picked by participants themselves! Here’s the top10 overall ranking: Balaline by Ex0 Sloshed: a Long Way to Bed by FishoJr Playtesters and…Read…

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Gamedev.js Jam 2025 start and theme announcement!

13th April 2025

Sixth yearly edition of the online competition for web game developers just started! Join Gamedev.js Jam 2025 on Itch – you have exactly 13 days between April 13th, 5 PM CET and April 26th, 5 PM CET to build an HTML5 game and win cool prizes in the process! Theme…Read…

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Pico-PubSub – the smallest PubSub library

6th April 2025

Hassan Shaikley created Pico-PubSub, the smallest PubSub library possible. With zero dependencies and only 149 bytes of code it beats the competition, both Tiny-PubSub and Nano-PubSub. PubSub is a pattern I really like, but I have to be careful when pulling in dependencies that are too big. In the context…Read…