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Gleb Volkov @glebv.bsky.social · 2d

The main takeaway from #js13k 2025: don't sink time into big, complex, self-contained concepts you don't have resources to finish properly. Start small but complete - then polish it as far as you can.

Next year's goal: get the game to playtests and tune the gameplay from there 🚀

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Frank Force @frankforce.bsky.social · 2d

ZzFX sound was used by 6 of the top 10 JS13K games, including top 3 in audio, congrats! 🏆💤🚀 #js13k

ZzFX is a tiny open source tool that can play sound effects like magic without needing sound files. What would you like to see in ZZFX 2.0? 🔊🤔

killedbyapixel.github.io/ZzFX/

ZzFX - Zuper Zmall Zound Zynth

A tiny sound effects generator for games and websites!

killedbyapixel.github.io

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🦋Alex Swan @boldbigflank.itch.io · 2d

Excited to be top ranked in #js13k 2025 in the WebXR category
The theme was Black Cat and my entry was a word puzzle set in a cat rave. Try them all out at js13kgames.com/2025/games
#gamedev #gamedevjs #gamejam #compo #competition #indiedev #indiegames #JavaScript #HTML5

Cover art of the 13 entries in the WebXR category

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Elias Ku @eliasku.bsky.social · 2d

We did it! 🎂 Our game Cat Survivors took 2nd place in three categories at #js13k 2025! 🏆 Huge thanks to everyone who played, rated, and shared feedback, to @end3r.bsky.social for another amazing jam!

Time to celebrate… with cake 🍰

#gamedev #cats #indiegame #indieGameDev #gamejam

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Frank Force @frankforce.bsky.social · 3d

Here are 2 more #js13k games that used LittleJS and they are both great! ✌️😄 #littlejs

Miss Fortune by Daniel Jeffery #55 overall
js13kgames.com/2025/games/m...

KleptoKitty by @eoinmcg #22 overall, 6th place controls, congrats! 🚀
js13kgames.com/games/klepto...

KleptoKitty

A game in the js13kGames 2025 competition. Play it now, for free!

js13kgames.com

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Frank Force @frankforce.bsky.social · 4d

My #JS13K game L1ttl3 Paws got 26th place! There were so many awesome games this year, and I really didn't get started until late in the contest. I'm just glad to be in the top 30! 😅👍 #gamedev #littlejs

js13kgames.com/games/l1ttl3...

L1ttl3 Paws

A game in the js13kGames 2025 competition. Play it now, for free!

js13kgames.com

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Andrzej Mazur @end3r.bsky.social · 2d

Enclave Games Monthly Report for September? Last month looked similar to August in terms of work - you guessed it, still all about #js13k 2025.

enclavegames.com/blog/monthly...

#EnclaveGames #MonthlyReport #gamedev #gamedevjs

Enclave Games Monthly Report: September 2025

September looked similar to August in terms of work - you guessed it, still js13kGames 2025.

enclavegames.com

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fedetibaldo @fedetibaldo.com · 4d

My #js13k entry made it into the top 10! 9th overall, and 4th in innovation 🎉

Congrats to all those who participated. Maybe see you next year :)

If you haven't yet, you can try it out on the comp's website 👉 js13kgames.com/2025/games/k...

#gamedev #gamejam #indiedev

The overall winner of this year's edition, as displayed on the JS13kGames website. On the bottom left, in 9th position, my game (Kuro Neko Market) is highlighted

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Frank Force @frankforce.bsky.social · 4d

Huge congrats to "Black Cat Squadron" for winning 5th place overall in #js13k using LittleJS Engine! It also works great on mobile devices, check it out! 🛩️💥🐈‍⬛ #littlejs

js13kgames.com/2025/games/b...

Black Cat Squadron

A game in the js13kGames 2025 competition. Play it now, for free!

js13kgames.com

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Gleb Volkov @glebv.bsky.social · 4d

I ranked 14th overall and an insane 4th in the Mobile category at #js13k 2025 with my game Catapoolt 🎯
👉 js13kgames.com/2025/games/c...

Not bad for a game made in just 2 days 😅
Huge thanks to everyone who helped, supported, and made this year’s compo so tough and awesome!

Catapoolt

A game in the js13kGames 2025 competition. Play it now, for free!

js13kgames.com

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Elias Ku @eliasku.bsky.social · 4d

The #js13k voting has ended - congrats to all participants! 🎉
Huge thanks to everyone who left feedback on Cat Survivors during the jam, it really means a lot. 🙏
Meanwhile, I'm adding gamepad support and building a fresh UI from scratch. 🕹✨

#screenshotsaturday #indiedev #gamedev #indiegamedev

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Andrzej Mazur @end3r.bsky.social · 4d

congrats, well deserved!

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Randy Tayler @randytayler.com · 4d

My browser-based VR game INSIDE CAT won 3rd place in #js13k... in the VR category. There were only 13 entrants in that category, but I'll take the bronze happily. My game fell apart near the end, and I almost didn't bother submitting it.

Thanks @end3r.bsky.social!

#gameDev #indiegames #hashtag

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Andrzej Mazur @end3r.bsky.social · 4d

Here are the WINNERS of the #JS13K 2025 competition, congratulations! 🎉

1. CLAWSTRIKE
2. Cat Survivors
3. Witchcat

Blog post: js13kgames.com/2025/blog/wi...

Full results: js13kgames.com#winners

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

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Andrzej Mazur @end3r.bsky.social · 5d

Issue #613 of Gamedev.js Weekly newsletter about from Steam to floppy, LittleJS Game Jam 2025, and Messenger is out - go check it!

gamedevjsweekly.com/613

#HTML5 #JavaScript #gamedevjs #gamedev #weekly #newsletter

From Steam to floppy, LittleJS Game Jam 2025, and Messenger

Check out issue #613 of Gamedev.js Weekly — the free, weekly newsletter about web game development.

gamedevjsweekly.com

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Andrzej Mazur @end3r.bsky.social · 7d

Less than THREE days left to vote and pick #js13k 2025 winners!

js13kgames.com/2025/games

If you didn't submit, you can still play the games and leave constructive feedback.

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

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Gleb Volkov @glebv.bsky.social · 8d

All sounds & music in my #js13k entry Catapoolt were made in #pico8 🎶
Playing them on Web (desktop + mobile) was made possible thanks to the awesome 'pico8-music' library by Cody Ebberson - took a few tweaks, but totally worth it 🙌
Huge thanks for helping my game sound! 🔊

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Gleb Volkov @glebv.bsky.social · 9d

In my #js13k game Catapoolt, the “hard-to-catch” mice are actually Autonomous Agents 🐭✨
They roam the game field using wander behavior and evade the cat with flee behavior - straight from the fantastic #theNatureOfCode book by @shiffman.lol

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Andrzej Mazur @end3r.bsky.social · 9d

An important blog post about deadlines and fixes in the #js13k competition - read carefully for the full story or check out TL;DR at the bottom for the summary.

js13kgames.com/2025/blog/de...

#gamedev #gamedevjs #deadline #bugfix #JavaScript #HTML5

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Elias Ku @eliasku.bsky.social · 9d

We made a 4K 60FPS trailer for a 13kb jam game Cat Survivors 🤯 Because even the smallest projects deserve epic treatment!

📺 Watch: www.youtube.com/watch?v=qy2n...
🎮 Play: js13kgames.com/2025/games/c...

#gamedev #indiedev #indiegamedev #js13k #gamejam #javascript

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Elias Ku @eliasku.bsky.social · 11d

🐈‍⬛ Our 13kb game Cat Survivors is part of #js13k 2025!
A vector-art twist on Vampire Survivors: survive 10 minutes... and maybe meet a special friend 💗
🎮 Play now: js13kgames.com/2025/games/c...
🗳️ Voting open until Oct 4!

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Gleb Volkov @glebv.bsky.social · 12d

Surprisingly fast decisions under #js13k limits: needed cat tail aligned to body. Instead of proper math - pushing tail's anchor along normal between two adjacent soft-body points towards center (super unstable), I just increased body outline thickness. Hacky, but perfect! 😶‍🌫️ #gamedev #indiedev

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svntax @svntax.com · 17d

I wrote a blog post about my (unfinished) VR demo for #js13k using PlayCanvas. There were some tough but interesting limits to using it while keeping the game under 13 KB.

https://blog.svntax.com/playcanvas-and-the-js13kgames-competition/

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eoinmcg @eoinmcgrath.com · 20d

Just posted a mini postmortem of my #js13k entry 🐱💎
What went right, what went wrong, and how I crammed a kleptomaniac cat into 13kb 👉
eoinmcgrath.com/kleptokitty/...

🕹️ Play & rate KleptoKitty:
js13kgames.com/2025/games/k...

#gamedev #littlejs

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Frank Force @frankforce.bsky.social · 20d

LittleJS rendering system is crazy fast. For the procedural hills in my #js13k game, I just draw a few thousand thin vertical strips. No sweat. 💪🚂

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