Js13kGames is a JavaScript coding competition for HTML5 Game Developers . The fun part of the compo is the file size limit set to 13 kilobytes . The competition started at 13:00 CEST, 13th August and ended at 13:00 CEST, 13th September 2016 . Theme for 2016 edition was Glitch . Read Tuts+ Gamedev intro article , check out my blog post and see the Rules for details, good luck and have fun !

I'm running this competition on my own in my free time. I acquired prizes worth more than 20.000 USD and will send the usual js13kGames t-shirts to all of the participants for free (one t-shirt per entry, free shipping) just like in the previous years, and hope to add some stickers, gadgets, and other swag as usual. Thank you so much for helping me to keep the competition going and your constant support!

Share the love for HTML5 games and support the js13kGames competition! See the Contact section for more details on how to get in touch.

Co-founder and owner of Jscrambler where he co-leads business development, and supervises all R&D and technical activities. Inventor and co-author of three patents in the Computer Security area. Holds a degree and a MSc in Computer Science. Speaker at several IT events, related with Security and JavaScript.

10-year experience in game industry focusing on business development, game licensing, developer relations, and Marketing. Elle has licensed a few hundred games on PC, mobile, and HTML5 in her career. She currently works at Simplaex, an innovative platform where allows game developers to monetize their player base outside of their games.

Jason Weathersby currently manages the Developer Relations group at Mozilla , evangelizing Firefox, Developer Tools, Research projects, HTML5 Gaming and all things for the Open Web. He is a proponent of HTML5, Open Web standards and Open Source and is a regular contributor to the Mozilla Hacks blog. Jason has over 25 years experience in the software development field, ranging from real time process control to business intelligence software.

YouTuber & writer of Indie Games, lover of Game Jams, Co-host of IndieGameJams.com . Aiming to be the Queen of Indie Games. Also enjoys going outside from time to time and taking pictures.

Super Special is an appreciation of a given entry that was original, unique and stood up from the others - handpicked by Andrzej Mazur.

There will also be a Twitter , Facebook and Google+ Specials just like before, and the famous Community Awards voted among all the participants.

There will be three different categories , you can submit your game to any of them - it's up to you.

Rules

Package size below 13 kB All your code and game assets should be smaller than or equal to 13 kilobytes (that's exactly 13,312 bytes, because of 13 x 1024) when zipped. Your .zip package should contain index.html file and when unzipped should work in the browser. Don't overcomplicate building the zip package, it should unpack on any platform without problems. You can use tools that minify JavaScript source code.

Two sources - readable and compressed The competition is focusing on the package size, but learning from others is also very important. Please provide two sources of your game - first one should be minified and zipped to fit in the 13 kB limit (sent via the form) and the second one should be in a readable form with descriptive variable names and comments (hosted on GitHub).

No external libraries or services You can't use any libraries, images or data files hosted on server or services that provide any type of data - for example Google Fonts are not allowed. Your game should work offline by launching the index.html file in the browser (Desktop and Mobile categories, not applicable to Server) and all the game assets should fit in the package size limit. If you manage to shrink your favorite library below 13 kilobytes including the code itself, then you can use whatever you want, just remember about the 13 kB limit.

Main theme The main theme of the competition in 2016 is Glitch. It's highly advised to follow it in your game, because the judges will pay attention to that, but you can freely interpret the theme and implement it however you feel would be the best.

Deadline - 13th September 2016 The competition starts at 13:00 CEST, 13th August 2016 and ends at 13:00 CEST, 13th September 2016. No submissions will be accepted after the end of the competition.

Licensing You have to have the rights for every asset used in your game. Remember that the submitted games will be published and made available for everybody to see.

New content only Do not submit any old games or demos - you have a whole month to work on something new and fresh, this should be more than enough.

Errors and browser support Your game must work and be playable in at least two browsers: Firefox and Chrome. The more supported browsers, the better - you can get more points for that. There should be no errors - you can lose some points if your game is showing any errors in the console. If we cannot play your game, it won't be accepted.

Teams It doesn't matter if you're working alone or with your friends, just remember that the number of prizes is fixed, so you'll have to share your trophies with your teammates.

Sending submissions There's a special form to submit your game. Please remember that you have to provide two sources (see the Rule #2 for details) - a link to a public repository on Github and a zipped package. Participants are allowed to submit more than one game in the competition, though sending the same game as independent submissions targeting different platforms (for example separate builds for desktop and mobile) is forbidden.

Accepting submissions Submissions will be checked manually and published after positive verification. This may take up to a couple of days, so be patient if your game is not yet online. I claim the right to reject any submission without giving a reason, although I hope I don't have to. I also have the right to update the rules of the competition at any time.

Time frames for voting, judging and announcing winners The Social Specials contest will be held from the start of the compo on August 13th till the end of the judging on September 27th, winners will be announced on the same day right after it ends. The Community Awards voting among the participants will last for a week between September 13th and 20th, winners will be announced on September 21st. Judges will vote for the games during the two week period after the submission time ends: from September 13th till 27th, winners will be announced on September 28th.

Server category specific rules All the Server category rules, the sandbox server and the demo code can be found at github.com/js13kGames/js13kserver.

Code of conduct All participants and judges at js13kGames 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. Js13kGames 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.