#js13k — Public Fediverse posts

The submit form is now open - check out this year's improvements, go ahead and add your #js13k entries and test them on the website already!

https://js13kgames.com/2026/blog/submit-form-open

#gamedev #gamedevjs #gamejam #compo #submit #form #indiedev #indiegames #JavaScript #HTML5

#js13k day 7: Physics adjustments, and UI polish

#gamedev

Day 5: colors and visual details

87%, probably going to have to do an optimization pass soon

#js13k #gamedev

Day 4: rainbows and crash animations
Almost all the systems are ready to be put together
Next: have it playable end to end

File size: 80%

#js13k #gamedev

Day 3 of #js13k: shoving as many core mechanics as I can before I start running out of space. Currently at 66% file size.

Unicorns are a thing. Tomorrow, rainbows 🌈🌈🌈

#gamedev

Soon, this will actually look like a unicorn...

#js13k #gamedev

The current build is 53.9% of the overall 13kb
I have no idea if I will go 3D this year but the template is setup for it. The next few days will be optimizing and brainstorming an actual game idea.

For once I dont have a specific game idea in mind, so we are starting with a clean slate! #js13k

Day 1, #js13k
A refactor of the template I made at the end of last year's gamejam. A whole lot of initial features - with keyboard/mobile/controller support, shaders, simple 3D and sfx (across web and mobile) + some extra colors now too.
A good starting point! 🦄🌈
#gamedev #gamejam

Day 1 of #js13k: no unicorns yet, but we have physics

RE: https://mastodon.gamedev.place/@js13kGames/117087858348412717

#js13k has begun!
Fun theme this year as always! Keen to get into it. 🦄🌈

Thank you SO MUCH to our awesome partners:

- Platinum: Wavedash
- Gold: GitHub, Poki
- Silver: OP_Guild, Berrry
- Bronze: EnclaveGames, Gamedevjs

It wouldn't be possible to have #js13k 2026 without them! ❤️

#gamedev #gamedevjs #partners #indiedev #indiegames #gamejams

Fifteenth edition of #js13k, web game development competition where you have to fit your entire game into a 13 kilobyte zip, starts NOW! The 2026 #theme is... #UNICORNS AND #RAINBOWS! 🦄🌈

https://js13kgames.com/2026/blog/competition-has-started

Share this info with the #gamedev world! 🎉

#gamedevjs #gamejam #indiedev #indiegames #codegolf #JavaScript #HTML5

Only 3 HOURS left for the #js13k 2026 competition start and the big theme reveal! ⏱️

https://js13kgames.com/2026/

#gamedev #gamedevjs #compo #competition #countdown #start #JavaScript #HTML5 #indiedev #indiegames

Win a total of $1500 in cash and Wavedash Credit for the best three entries in the #Wavedash category, plus $10 in Wavedash Credit for every category participant during #js13k 2026!

https://js13kgames.com/2026/prizes#wavedash

Details: https://js13kgames.com/2026/wavedash

#gamedev #gamedevjs #HTML5 #JavaScript #indiegames #gamejam #indiedev

In exactly 24 HOURS from now, on August 13th at 1 PM CEST, the fifteenth edition of #js13k will start! Are you ready?

https://js13kgames.com/2026/

#gamedev #gamedevjs #compo #competition #countdown #start #JavaScript #HTML5 #indiedev #indiegames

Less than 2 DAYS left to the theme reveal and the start of the #js13k 2026 competition!

https://js13kgames.com/2026/

#gamedev #gamedevjs #compo #competition #countdown #start #JavaScript #HTML5 #indiedev #indiegames

Say hello to Josh Marinacci: engineer, author, single dad, and #WebXR category expert in #js13k 2026!

https://js13kgames.com/2026/experts#josh

#gamedev #gamedevjs #WebVR #XR #VR #MR #WebMR #WebGL #Mozilla #3Dprint #3Dprinters

Win one of the TEN CraftPix memberships for 12 months for teams of up to 5 members each in #js13k 2026!

https://js13kgames.com/2026/prizes#craftpix

#gamedev #prize #gamejam #craftpix #gameasset #gameassets #indiedev #indiegamedeveloper

Please welcome #SonarSystems creator and FireDEV host, Frahaan Hussain, as our #js13k 2026 expert!

https://js13kgames.com/2026/experts#frahaan

#gamedev #gamedevjs #FireDEV #YouTube #Podcast #host #creator

Win one of the FIVE Easel+ subscriptions for 12 months each in #js13k 2026!

https://js13kgames.com/2026/prizes#easel

#gamedev #gamedevjs #MadeWithEasel #Easel #2D #multiplayer

Our long time participant, Victor Debone, is going to be an expert in #js13k 2026 yet again!

https://js13kgames.com/2026/experts#victor

#gamedev #gamedevjs #indiedev #indiegames #JavaScript #HTML5 #expert #judge

Win one of the THIRTEEN Berrry Pro subscriptions for 3 months each in #js13k 2026, and claim 100 credits right now!

https://js13kgames.com/2026/prizes#berrrypro

Redeem the credits in #berrry on our Slack or Discord.

#gamedevjs #gamedev #AI #prize #free #credits #indiedev #indiegames

The fifteenth (!) yearly edition of #js13k starts next week, in exactly 6 days from now - a perfect opportunity to build a cool little game within the 13 kilobyte zip size limit.

https://js13kgames.com/2026/

#gamedev #gamejam #compo #competition #codegolf #challenge #JavaScript #HTML5 #indiedev #indiegames

We're happy to have Dion van Beelen, Game Developer Support Manager at Poki, as an expert in #js13k 2026!

https://js13kgames.com/2026/experts#dion

#gamedev #Poki #indiedev #indiegames #gamejam #LongLiveTheWeb #JavaScript #HTML5

Win one of the THIRTEEN CSS Battle Plus accounts for 6 months each in #js13k 2026!

https://js13kgames.com/2026/prizes#cssbattle

#gamedev #gamedevjs #CSS #CSSBattle #CSSBattleChallenge #CSSBattleDaily

We're excited to welcome a new Partner in #js13k 2026: Berrry!

https://js13kgames.com/2026/#berrry

#gamedev #gamejam #partner #Berrry

Welcoming Iris Kroonstuiver, Business Development Manager at Poki, as an expert in #js13k 2026!

https://js13kgames.com/2026/experts#iris

#gamedev #Poki #indiedev #indiegames #gamejam #LongLiveTheWeb #JavaScript #HTML5