The Interledger Community 🌱: Andrzej Mazur

The js13kGames 2025 competition has started!

Andrzej Mazur — Wed, 13 Aug 2025 11:30:49 +0000

The fourteenth yearly edition of the online js13kGames competition starts… NOW! Build a web game following the theme within the next month and fit it into a 13 kilobyte zip package to win lots of cool prizes, eternal fame, and respect from fellow devs!

This year’s theme is… Black Cat!

Quite straightforward and literal, but you can use this particular black cat however you like: as a main character, element of the story, gameplay, or as an NPC. You can make a simple Doodle Jump clone like our Triska Reloaded with Badlucky , or fully 3D RPG. It could even be a C.A.T. codename for anything really, not involving felines at all - unleash your creativity!

When you’re ready, send your game through the Submit form when it opens a couple of days from now, around Monday August 18th.

Partners

The support from the companies listed below is crucial for our competition.

Those are: OP Guild, GitHub, Cloudflare, Poki, Playhop, and Geodework. Plus our own brands, Enclave Games and Gamedev.js.

Prizes

We have more than 20 different types of prizes this year, so plenty of cool things to win.

The exact design of our traditional t-shirt for top100 participants and this year’s gadget will be revealed in the next few days.

Experts

We can’t have this competition without our lovely experts providing valuable feedback to your entries.

They will carefully play through the games assigned to them and write their advice.

Collaborate, document, share, promote

We’re all in this together and other participants can help you if you return the favor. Collaborate with fellow devs, suggest theme ideas, help fix bugs, or playtest their entries and you will get the same. Join our Slack or Discord where all the cool folks are!

Document as you go, share your progress using #js13k hashtag on X/Twitter, Mastodon, or Bluesky, so it will be easier for you to recap what you did and write that Post Mortem of what went good and what could’ve been done better.

Last, but not least: help promote the competition itself, share the good news with your local communities, friends from work, and invite them all to participate! The bigger we are the better for everyone, thank you so much for everything!

That’s it - good luck and have fun!

The js13kGames 2025 countdown is on!

Andrzej Mazur — Fri, 13 Jun 2025 15:54:52 +0000

It’s June 13th already, so it’s high time to count down to the fourteenth edition of js13kGames - our yearly online competition for web game developers. Expect partners, experts, and prizes to be announced in the coming weeks up until the start on August 13th.

The usual call to action applies: please help promote our competition to as many folks as possible, so we can grow as a community. Do reach out if you know your company has a sponsorship budget, or would like to offer a prize - all the support we can get will be highly appreciated.

Don’t forget to follow our X and Facebook accounts for updates, and join Slack or Gamedev.js’ Discord to talk with fellow devs if you haven’t already.

PS. The Facebook album with the selfies of you wearing js13kGames 2024 t-shirts is up - if you did get the swag and haven’t shared it with the world yet please do so and let us know, so we can include it in the collection!

Enclave Games Monthly Report: May 2025

Andrzej Mazur — Tue, 03 Jun 2025 18:44:13 +0000

Announcing Gamedev.js Jam 2025 overall winners and the best entries in the optional challenges, sending all the digital prizes, releasing the Balance t-shirt design in the online shop, and vibe coding a js13kGames shader - all that happened in May.

Games

Not a game, but I did some “coding”! I mean, I’m not sure anymore as I haven’t written a single line of code, but I did release a shader - check out Vibe coding js13kGames shader for the V Shaders challenge blog post. It’s not much, but it’s js13kGames-branded, animates nicely, don’t throw any errors in the console, and looks good enough. Vibe coded it super fast with ChatGPT.

Am I back to coding if I didn’t write the code? Who knows, but at least I’m closer to building and releasing some games again. It’s high time as the last Enclave Games creation was Forest Cuties - in June… 2021.

Writing

I’ve focused on writing about the Gamedev.js Jam 2025 this month:

[10.05] Gamedev.js: Gamedev.js Jam 2025 winners announced!
[11.05] Gamedev.js: Best entries from the Challenges in Gamedev.js Jam 2025
[20.05] Gamedev.js: New Gamedev.js Jam 2025 t-shirt: Balance!
[21.05] Enclave Games: Vibe coding js13kGames shader for the V Shaders challenge

I’m still quite happy about the shader though.

OP Guild

Winners of the $NOODS challenge in Gamedev.js Jam 2025 were announced, among other challenges.

I’m exploring vibe coding web games, since PotNoodleDev is OP Games ’ AI agent who does exactly that.

Events

Michelle “MishManners” Duke and Dobuki Gamer streamed playing Gamedev.js Jam 2025 entries on YouTube - you should definitely check those out, and if you recorded something yourself please let us know.

Landing page of Gamedev.js Jam 2026 is already up, along with the relevant Itch page.

Other

NeuroshimaHex.pl is the official patron of the 20th anniversary edition of Neuroshima Hex in Poland that is planned to be released in September, our logo will land at the back of the box.

Plans for the next month

Start the preparations to js13kGames 2025, hopefully with the website’s sources on GitHub.

Vibe code some games, hopefully.

Vibe coding js13kGames shader for the V Shaders challenge

Andrzej Mazur — Wed, 21 May 2025 16:52:31 +0000

I vibe coded a shader in an hour and submitted it to the V Shaders challenge which offers $12k prize pool - you can do it too as the deadline is tomorrow, May 22nd.

One of the optional challenges in the recently ended Gamedev.js Jam 2025 was V Shaders one by the V Systems team, which was all about creating a 16 kilobyte shader and uploading it to their Marketplace as an NFT.

I can’t afford to have enough spare time to participate in my own jams and competitions, but this was a bit different: the deadline was extended from the original April 26th. When I wrapped Gamedev.js Jam 2025 I could check how easy (or difficult) it was to participate, as the submission process was outside of Itch.

I wanted to properly start coding the shader in VS Code or Cursor, but decided to ask ChatGPT a few general questions about shaders first. Interestingly enough, after a few answers I ended up with a source code for an example shader, and decided to iterate on that.

After a few simple prompts I ended up with a simple, basic shader animating “flow” in the background, with the js13kGames logo wiggling in the front. I’ve updated the colors to reflect the js13kGames branding and that’s it!

It would take 5 minutes, but the remaining 55 was spent on trying to force ChatGPT into embedding the svg logo in a shader itself - after about ten failed attempts at fixing it I had to do a small research myself and apply the changes manually.

After all the output was a single index.html file, so it wasn’t that difficult. I zipped it and moved to the next steps:

Create a (JavaScript) shader
Create the Titan wallet
Get some $VSYS
Create a new collection
Mint your NFT
…
PROFIT

Follow the introductory blog post and step-by-step tutorial from the V Systems folks and you’ll easily make a submission yourself. You can even ignore forking their repo and doing all the Rust building as the zip with the html file containing the shader is good enough to be submitted to the Marketplace directly.

You do need a bit of $VSYS to create your collection in their Marketplace, which you’d get from V Systems folks, but if you don’t want to wait you can buy some through an exchange like MEXC. You only need a few cents to do that though, and then you’ll be able to mint NFTs freely.

That’s it - two hours of tinkering to have a chance at winning up to $1000 in four different categories with the total prize pool of $12000, so definitely worth checking out!

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

Andrzej Mazur — Tue, 20 May 2025 16:03:06 +0000

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:

Every sale helps organize next editions of the Jam, thank you so much for your support!

Prizes

All the prize redeeming instructions were emailed to the winners via addresses you left when submitting entries through Itch. This means the overall results, criteria, and challenges as well. If you miss anything, check your spam folder first, and then get in touch.

js13kGames 2025

Done with the Jam and don’t know what to do with your gamedev life? There’s js13kGames 2025 coming in August you might consider joining, but that’s for the brave few who can squeeze a web game into a 13 kilobyte zip package. Definitely not for everyone.

Gamedev.js Jam 2026

The Gamedev.js Jam 2026 landing page is up already. You can join Gamedev.js Jam 2026 on Itch to be notified when the preparations to the next edition will begin - I hope to see you there!

Enclave Games Monthly Report: April 2025

Andrzej Mazur — Wed, 07 May 2025 14:12:45 +0000

This will be a short Monthly Report as it’s still all about the ongoing Gamedev.js Jam 2025.

Games

Nope, not yet, but hopefully I’m onto something.

Writing

A first few days of April had the regular content being published, with Jam challenges leading to the start and theme announcement.

[01.04] Gamedev.js: Breakout 71 — classic with a twist
[02.04] Gamedev.js: Jam 2025: V Shaders challenge
[03.04] Gamedev.js: CSScape Room — no-JavaScript escape game
[04.04] Gamedev.js: Jam 2025: Phaser challenge
[06.04] Gamedev.js: Pico-PubSub — the smallest PubSub library
[07.04] Gamedev.js: Jam 2025: $Noods challenge
[08.04] Gamedev.js: 2025 Vibe Coding Game Jam
[09.04] Gamedev.js: Jam 2025: Open Source challenge
[10.04] Gamedev.js: NPC Friday #1: Vibe Coding intro
[11.04] Gamedev.js: All challenges in Gamedev.js Jam 2025: V Shaders, Open Source, Phaser, and $Noods
[13.04] Gamedev.js: Jam 2025 start and theme announcement!
[28.04] Gamedev.js: All the entries from Gamedev.js Jam 2025

Then I focused on the Jam entirely.

OP Guild

We’ve ended up with 22 entries submitted to the $NOODS challenge in Gamedev.js Jam 2025, which is pretty good.

Events

Announcing last Gamedev.js Jam 2025 partners, prizes, and experts before the start, and then the theme announcement. Later on filtering out spam, and assisting with submissions, all while being active on social media.

Open Source (122 games)
Build it with Phaser (68 games)
$NOODS (22 games)

We ended up with 420 entries this year! Check out #gamedevjs for the stream of cool web game updates shared by the community.

Other

I bought a drone, DJI Avata 2 to be exact, as I wanted an FPV one for half of my life actually - really happy with the first days of using it.

Plans for the next month

Announcing Gamedev.js Jam 2025 winners and hopefully vibe coding some entries into other game jams myself.

All the entries from Gamedev.js Jam 2025

Andrzej Mazur — Tue, 29 Apr 2025 16:37:48 +0000

Gamedev.js Jam 2025, the sixth yearly edition of the online web game development competition wrapped two days ago, on April 26th - our community broke the record (again) and we ended up with 420 submitted games!

That’s 175% increase from last year’s 238 entries, which was our previous record. All built within 13 days between April 13th and 26th on a given theme: BALANCE.

Play all the games directly on Itch: itch.io/jam/gamedevjs-2025/entries

Thank you all who submitted! Now’s the time to play each other’s games and rate them. Vote for as many of the entries as you can, since Itch will promote games with good Karma (number of votes sent versus number of votes received). Make sure to provide constructive feedback if you’d like to receive it from other folks as well.

Didn’t submit? You can still help: play the games and leave your comments of what you liked about a given entry and what you think could’ve been improved.

The voting will end on May 9th , with the overall winners being announced the next day on May 10th, and results of the extra challenges (picked by dedicated experts) will be published on May 11th.

We’ve filtered the entries submitted to this year’s challenges:

Open Source (122 games)
Build it with Phaser (68 games)
$NOODS (22 games)

The V Shaders challenge is extended till May 8th though, so make sure to check it out if you’d like to win some cash from the $12k prize pool dedicated to this challenge alone.

Enclave Games Monthly Report: March 2025

Andrzej Mazur — Fri, 25 Apr 2025 16:47:15 +0000

Focusing on preparations of the Gamedev.js Jam 2025 took its toll, and so the Monthly Report for March is out more than three weeks into April.

Games

Vibe coding with Cursor! I don’t have anything to show (yet), but I did play with Cursor’s capabilities a bit and I want to get back to coding SO MUCH.

Writing

I’ve completed my personal challenge of publishing a (short) news piece EVERY WORKING DAY throughout March on gamedevjs.com, so it ended up being 21 entries in total: 8 games, 4 tools, 4 events, 3 tutorials, 1 competition, and 1 video.

[03.03] Gamedev.js: Chipped — break rocks and find minerals
[04.03] Gamedev.js: JSNation 2025 discount code
[05.03] Gamedev.js: Asterogue — sci-fi space roguelike
[06.03] Gamedev.js: React Summit 2025 discount code
[07.03] Gamedev.js: SWGPU — simple WebGPU game engine
[10.03] Gamedev.js: Bubbits — bubble shooter battle royale
[11.03] Gamedev.js: Flow made in Blender
[12.03] Gamedev.js: Little Ski — LittleJS game tutorial
[13.03] Gamedev.js: Nanojet — micro WebGPU game engine
[14.03] Gamedev.js: Daily Dungeon — new maze every 24 hours
[17.03] Gamedev.js: Web Game Developers at GDC 2025
[18.03] Gamedev.js: The King’s Crowns — making of a WebXR game in 13 kilobytes
[19.03] Gamedev.js: Code Europe 2025 discount code
[20.03] Gamedev.js: Hammer Time — smash your enemies
[21.03] Gamedev.js: Publishing web games on Steam with Electron
[24.03] Gamedev.js: Fyrox — Rust based game engine
[25.03] Gamedev.js: Dragonsweeper — a minesweeper and RPG hybrid
[26.03] Gamedev.js: Nitrode — AI-assisted platform using Godot
[27.03] Gamedev.js: Space Intruders Alliance — sci-fi retrofuturistic top-down shooter
[28.03] Gamedev.js: Project Prismatic — WebGPU powered FPS
[31.03] Gamedev.js: PlayHack — game jam with Elympics on Arcadia

I’ve caught up with most of the topics from the past few months, but I don’t think I’ll be able to continue with the similar pace in April - even though the posts are short, it all takes time, and I’ll be busy with Gamedev.js Jam 2025 anyway.

OP Guild

Lots of cool things happening: $NOODS challenge in Gamedev.js Jam, vibe coding experiments, and the emergence of PotNoodleDev.

Events

Gamedev.js Jam 2025 preparations and announcements took most of March.

A new W3C Games Group is about to be created to work on the specification and implementation of the Loading and Control API.

Other

Both End3r’s Corner and TataDeveloper are now running on a new engine, Astro. Gatsby got heavy, but the main issue was… the old laptop with the publishing setup died. Fortunately, Alkor helped and now everything’s back, and running as smooth as ever.

Plans for the next month

Finishing touches and announcements, and then actually running Gamedev.js Jam 2025, the sixth yearly edition of the jam already.

W3C Games CG March 2025: Loading and Control API

Andrzej Mazur — Fri, 18 Apr 2025 20:11:43 +0000

During our W3C Games Community Group meetup happening on March 25th we’ve formulated the idea of a brand new Community Group being created specifically around the concept of Loading and Control API.

It all started with Tom Greenaway ’s Open Mini Games proposal a few years ago, and was brought back during November’s meetup where we had Andrew Gildfind from GameSnacks talking about discovery, distribution, and monetisation.

The following is a proposed charter for a new W3C Community Working Group which aims to define a Micro-API outlining a boundary between a web game and the page on which it is embedded.

Feel free to go through Loading and Control API for Web Games Community Group Charter document and leave any comments or questions you might have about the goals, scope of work, or deliverables.

By creating a new group instead of having the current one we won’t be needing to change the charter, which would mean all members needing to actively agree to it or be kicked out. The original group was created to have an open discussion (mostly through our online meetups) about web games in general, which can still serve its purpose, while the new one would actually focus on the work needed to have such API documented and implemented.

Gamedev.js Jam 2025 start and theme announcement!

Andrzej Mazur — Sun, 13 Apr 2025 15:24:18 +0000

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

This year’s theme is… BALANCE!

As always you are free to interpret it however you like. Balance can mean physical equilibrium on a scale, or stability during sports. It could be you bank account’s balance, or mental steadiness. Your entry can focus on physical balancing, resource management, combat balance, moral or life balance, symmetry and aesthetics, ecological balance, or even controlling two things at once.

Balance is a versatile theme and can inspire a wide range of creative interpretations!

Partners

Here are our awesome Partners supporting the competition:

Platinum : OP Guild, V Systems
Gold : GitHub, Phaser Studio, OP Games, Playhop
Silver : Poki, Arcadia, Playgama.com
Bronze : Litemint, Enclave Games, js13kGames

Thanks to them we’re able to run the jam this year again.

Challenges

Four optional challenges with extra prizes:

V Shaders by V Systems
Open Source by GitHub
Build it with Phaser by Phaser Studio
$NOODS by OP Games

You can pick any of the challenges above, or ignore them entirely.

Prizes

A long list of prizes for the overall winners, top entries in each criteria, and challenges:

5 × Jsfxr Pro Solo lifetime license
10 × WebStorm IDE commercial license for 12 months
10 × Pyxel Edit editor license
5 × How to Make a Video Game All By Yourself ebook
10 × Jump Tracks game license
5 × GDevelop Gold license for 12 months
25 × The Supernatural Power Troll game license
2 × Construct 3 Personal license for 12 months
3 × CodePen Pro Starter account for 12 months
10 × PlayCanvas Personal plan for 12 months
5 × Zenva Academy subscription for 12 months
5 × CosmoPirates game license
30 × Athena Crisis game license
5 × Aseprite editor license
5 × Kenney pack: Game Assets All-in-1 and Asset Forge Deluxe
V Shaders Challenge prize pool: $12 000*
Open Source Challenge prize pool: 5 GitHub Copilot Pro plans
Build it with Phaser Challenge prize pool: $1000 and 10 Vampire Survivors bundles
$NOODS Challenge prize pool: $1 000*

The first are decided by participants themselves in a public voting, and the last are picked by dedicated experts.

Experts

Most of the folks are choosing the best entries in this year’s challenges, with a few others picking their top5 out of all submitted games.

They are more than happy to play your entries and give you valuable feedback.

Join the jam!

Start jamming! Join Gamedev.js Jam 2025 on Itch if you haven’t already, visit our Discord to find teammates or brainstorm theme ideas with fellow devs, and ask for feedback later on. Do share your progress using #gamedevjs hashtag on X/Twitter, Mastodon, or Bluesky.

Countdown to Gamedev.js Jam 2025 and call for partners

Andrzej Mazur — Fri, 14 Feb 2025 14:20:36 +0000

In two months from now the sixth edition of Gamedev.js Jam will happen - you’ll have thirteen days between April 13th and 26th 2025 to create a web game on a given theme announced at the start. We’ll have plenty of prizes to win and challenges to pick from.

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!

I’ll start announcing everything soon, but if your company would like to partner with Gamedev.js Jam 2025 and support our web gamedev community, please get in touch! Recruiting new folks, promoting your own product, inviting devs to your platform, or anything else really - all that is possible, and I’m always happy to answer any questions you might have.

If you haven’t done that already, make sure to join Gamedev.js Jam 2025 on Itch, follow the jam’s account on X / Twitter or Mastodon (or even my personal one on Bluesky), and visit our Discord to talk with fellow devs and even team up if you’d like. Can’t wait to see what y’all will build this year!

Enclave Games Monthly Report: January 2025

Andrzej Mazur — Wed, 05 Feb 2025 20:36:57 +0000

Another yearly edition of the Gamedev.js Survey wrapped in December, and the report was published in January. Other than that it was rather a slow month, because of all the non-gamedev things that needed to be handled.

Games

Nothing, unfortunately. Maybe next time.

Writing

Not that much this month, but still a solid amount of (short) posts:

[02.01] Gamedev.js: Phaser Box2D — free 2D physics engine
[03.01] Gamedev.js: GitHub Copilot is now free in VS Code
[06.01] Gamedev.js: Survey 2024 concluded with a record number of submissions
[07.01] Enclave Games: Enclave Games in 2024, and plans for 2025
[10.01] Gamedev.js: Stimulation Clicker — sensory overload on another level
[16.01] Gamedev.js: LittleJS Game Jam challenges winners
[17.01] Gamedev.js: The Wildfires — fly firefighting airplanes
[20.01] Gamedev.js: Vue.js Nation 2025 conference and licenses giveaway
[21.01] Gamedev.js: Global Game Jam 2025 started
[22.01] Gamedev.js: DOOM: The Gallery Experience — paintings showcase simulator
[29.01] Gamedev.js: Report on the current state of Web Game Development in 2024 is out!

Two Survey updates, two tools, three games, two competitions, and one event. Plus, of course, our Yearly Report.

OP Guild

The LittleJS Game Jam challenge winners were announced. The challenges, coming from and judged by OP Guild, were: Cozy , Arcadia , and Endangered Species.

Some new deals, collabs, and game jams were confirmed and should be announced soon.

Events

I went to Katowice to be a judge at the Neuroshima Hex Polish Championship finals that happened during Portalcon, Portal Games’ own convention. It was quite an interesting experience, since it was also my very first attendance to Portalcon itself.

It went surprisingly well, and we had the luck of having the author of FAQ and Codex on the spot, the person who knows the Neuroshima Hex rules the best out of anyone in Poland.

Other

The Gamedev.js Weekly newsletter had its biggest delay since the very beginning in 2014 — recent issue was sent three days later, on Monday instead of Friday.

Gamedev.js Survey 2024 report was prepared and published.

I had my second surgery in the past two months and I’m recovering.

I passed my driving test recently, in the very first attempt (with the car number 13). Something I thought I’ll never do in my whole life, drive a car, is now “just” another skill I learned. We’re currently trying to get our own car, but everything that can go sideways goes sideways. It’s really frustrating to bump into issues on every single step of the process, but we’ll get there eventually.

Plans for the next month

It’s time to start the Gamedev.js Jam 2025 preparations.

The Interledger Community 🌱: Andrzej Mazur

The js13kGames 2025 competition has started!

Categories

Partners

Prizes

Experts

Collaborate, document, share, promote

The js13kGames 2025 countdown is on!

Enclave Games Monthly Report: May 2025

Games

Writing

OP Guild

Events

Other

Plans for the next month

Vibe coding js13kGames shader for the V Shaders challenge

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

Prizes

js13kGames 2025

Gamedev.js Jam 2026

Enclave Games Monthly Report: April 2025

Games

Writing

OP Guild

Events

Other

Plans for the next month

All the entries from Gamedev.js Jam 2025

Enclave Games Monthly Report: March 2025

Games

Writing

OP Guild

Events

Other

Plans for the next month

W3C Games CG March 2025: Loading and Control API

Gamedev.js Jam 2025 start and theme announcement!

Theme

Partners

Challenges

Prizes

Experts

Join the jam!

Countdown to Gamedev.js Jam 2025 and call for partners

Enclave Games Monthly Report: January 2025

Games

Writing

OP Guild

Events

Other

Plans for the next month