April 13th - 26th 2025

Gamedev.js Jam 2025

Let's build Web games!

Join the Jam!

Platinum Partners

To be announced.

Gold Partners

To be announced.

Silver Partners

To be announced.

Bronze Partners
Enclave Games js13kGames

If you'd like to become a Partner, please reach out via email!

When?

The Jam runs for 13 days: between April 13th and 26th 2025.

Where?

A globally available online event hosted at Itch.io.

Why?

Have fun building games and win some prizes at the same time!

Gamedev.js Jam celebrates Web games - build an HTML5 game within 13 days of the jam on a given theme, it runs between April 13th, 5 PM CET and April 26th, 5 PM CET 2025. Also, there are prizes!


Join the Jam!

The theme will be announced right at the start. Remember that your entry will be judged based on how well you implement the theme, but you can interpret it however you like.

Join us no matter your skill level - this game jam is a perfect opportunity to create your very first game, or build a prototype for your next commercial hit. Almost two weeks of development time should be more than enough!

You can use #gamedevjs hashtag on Twitter to share your progress, ask for feedback, see what others are building and hopefully help them out if they need it. There's also a Discord server for direct communication!

Check out the previous editions to get the grasp of what to expect: 2020, 2021, 2022, 2023, 2024.

This Jam is organized by Andrzej Mazur from Enclave Games, creator of the js13kGames competition.

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Challenges

There are optional Challenges in the Jam - entries submitted to those will be judged separately by the panels of dedicated experts, and each offer unique prizes for the best games.

  • To be announced.

You are free to take on any of them, selected few, or even multiple at once.

Prizes

There are two levels of prizes: for all the entries, and for given Challenges.

Overall prizes

Those prizes will be given to the best entries of the overall ranking on Itch.io:

  • To be announced.

Challenge prizes

  • To be announced.


Winners will also be promoted via our Twitter, on the gamedevjs.com website, and in the Gamedev.js Weekly newsletter.

Experts

Panel of experts giving feedback to your entries (with their top5 picks each), or judging games from given Challenges.

To be announced.

Submitting your entry

Submit an HTML5 game between April 13th and 26th 2025 through the Itch.io platform. It can be a solo submission, or a team effort. You can even submit more than one entry if you want to. Submitted games should have English as the default language.

Voting on entries

Voting will be open to all who submitted a game, and will happen via the Itch.io platform for 13 days right after the submission period ends - between April 26th and May 9th. Winners will be announced on May 10th, and challenges on May 11th.

Games will be voted on based on a given criteria: Innovation, Theme, Gameplay, Graphics, and Audio. The Overall ranking will be based on the summary of those.

Following the rules

The short version is: anything that can run on the Web in a browser without extra plugins is considered a valid jam entry. It's highly advised you create new content for the jam - submitting your old demos or already finished projects makes no sense.

If you have any questions or concerns please ask at the Community forums or join our Discord server.

Gamedev.js Survey 2023

Gamedev.js Survey 2023

Gamedev.js Survey 2023 is over, and the Report was already published! If you participated and submitted your answers - thank you! Feel free to view and use the results of the current state of Web Game Development in 2023 as long as you credit and link to the source.

Code of Conduct

All participants and judges of the Gamedev.js Jam are required to agree with the following code of conduct. Organizers will enforce this code throughout the online event. We are expecting cooperation from all participants to help ensuring a safe environment for everybody.

Gamedev.js is dedicated to providing a harassment-free competition experience for everyone, regardless of gender, sexual orientation, disability, physical appearance, body size, race, or religion. We do not tolerate harassment of competition participants in any form. Competition participants violating these rules may be sanctioned or expelled from the competition at the discretion of the competition organizers. TL;DR: Be excellent to each other. For more details see Berlin Code of Conduct.

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