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Firefly Zero (game console)

@fireflyzero.bsky.social
74 followers 1 following 78 posts

A modern handheld game console with effortless multiplayer. It's fun to play, alone or with friends, and easy to program.

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Firefly Zero (game console) @fireflyzero.bsky.social · 15h
New release! Improved multiplayer, more CLI commands, and news about webshop and new prototypes. github.com/firefly-zero...
github.com
Release 0.14.0: Improved multiplayer · firefly-zero/firefly-emulator
Multiplayer UX has been improved a lot, to prevent some common mistakes like starting a game when not all devices finished connecting. Thanks to @applejag for breaking it 🙃 Firefly CLI has new subc...
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Firefly Zero (game console) @fireflyzero.bsky.social · 29/09/2026
🥳 We're organizing Firefly Zero Gamejam #3! itch.io/jam/firefly-... When: 31 Oct - 1 Nov Theme: TBA Prizes: Best games will be featured at FOSDEM and on the final device, and all participants can pick up a limited edition t-shirt at FOSDEM. #gamejam #gamedev #hacktoberfest #fosdem #fosdem2027
itch.io
Firefly Zero Jam #3: Spooky Fireflies 🎃
A game jam from 2026-10-31 to 2026-11-04 hosted by Firefly Zero. Firefly Zero Jam #3: Spooky Fireflies 🎃 Hi, I'm Gram , the creator of Firefly Zero . What is Firefly Zero? I'm glad you asked! Firefly ...
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Firefly Zero (game console) @fireflyzero.bsky.social · 27/09/2026
We're going to #Hackfest! It's a small but gezellig fest in Enschede (NL), 10 October 2026 (Sat). Come say hi and try fresh new prototypes. hackfest.nl This year I (Gram) will be there alone. Alex broke his leg a few days ago and he needs time to recover. Press 🦵 to wish him good luck.
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Firefly Zero (game console) @fireflyzero.bsky.social · 24/09/2026
Something's cookin' 🍳
A photo of a pile of Firefly_Zero-shaped PCB's. One PCB has touchpad, buttons, and screen. The screen shows a primitive UI with touchpad and buttons on it and title "Input test".
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Firefly Zero (game console) @fireflyzero.bsky.social · 11/09/2026
Check out devlog by Christoph Voigt about writing a Tetris clone for Firefly Zero: christophvoigt.com/notes/firefl... The project is paused for now but the posts that are already here cover some interesting topics, like how Tetris works to multiplayer in Firefly Zero. #gamedev
christophvoigt.com
Firefly Devlog
Ramblings of a Hobby Game Developer
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Firefly Zero (game console) @fireflyzero.bsky.social · 02/09/2026
Wasmi 2.0 is released! Wasmi is the #wasm interpreter powering Firefly Zero and is the main component that makes Firefly Zero possible. Robin Freyler, the bird behind wasmi, published a blog post covering the crazy optimizations that made wasmi v2 much faster: wasmi-labs.github.io/blog/posts/w...
wasmi-labs.github.io
Wasmi 2.0 - Engineering of the Fastest Wasm Interpreters
The optimizations behind Wasmi 2.0, and how they compare to Wasm3 and Stitch.
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Firefly Zero (game console) @fireflyzero.bsky.social · 31/08/2026
We now have the AI policy: docs.fireflyzero.com/internal/ai/ TL;DR: don't. #NoAI
docs.fireflyzero.com
AI policy
This policy covers the use of LLM (Large Language Models, also know as AI or GenAI) and LLM-based tools (ChatGPT, Claude, GitHub Copilot, Zed AI, Cursor.dev, etc.) in Firefly Zero projects. We do not ...
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Firefly Zero (game console) @fireflyzero.bsky.social · 21/08/2026
It's now safe to turn off your Firefly
Photo of Firefly Zero handheld game console on a light-brown wood surface. The yellow text on the black screen says "It's not safe to turn off your Firefly".

Explanation: the text is a reference to the "It's now safe to turn off your computer" message that was shown by Windows on old computers that had no way to power off from OS and the user had to press the power off button manually. It's not how Firefly Zero works but we love retro hardware and wanted to make a small tribute.
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Firefly Zero (game console) @fireflyzero.bsky.social · 07/08/2026
It's release Friday! In Firefly Zero 0.13.0, UIs for game menu and game info page get overhaul, launcher gets notification icons, and apps get access to precise time and get their logs stored in a log file. github.com/firefly-zero...
github.com
Release 0.13.0: Notifications and system updates · firefly-zero/firefly-emulator
For players Show icons in launcher when a game has unread manual, new badges, or new top scores. Install system updates on device via app installer (not supported in emulator). Improved (less conf...
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Firefly Zero (game console) @fireflyzero.bsky.social · 28/07/2026
Firefly Zero is made without any AI whatsoever. It also has no DRM, no subscription, no ads, no data mining, and no proprietary code. It's not just a technology. It's a manifestation of our principles, a statement that we all must do things differently to build a better world. #NoAI #zuzai #linux
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Firefly Zero (game console) @fireflyzero.bsky.social · 18/07/2026
Free game assets for everyone! We've set a small budget for promoting gamedev and supporting artists. And we've figured we can do both if we buy for y'all a bunch of game assets. 1/2
discord.gg
Join the Firefly Zero Discord Server!
Firefly Zero is a modern handheld game console with effortless multiplayer. This is the official Discord server for Firefly Zero users and developers. | 45 members
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Firefly Zero (game console) @fireflyzero.bsky.social · 13/07/2026
All our games have been moved from Github to #Codeberg: codeberg.org/firefly-zero No love for Microslop 💔 All other code (firmware, system apps) is still on Github. This might change in the future.
codeberg.org
Firefly Zero
A modern WebAssembly-powered handheld game console with effortless multiplayer
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Firefly Zero (game console) @fireflyzero.bsky.social · 06/07/2026
A tiny release fixing emulator on ARM OS X and adding system info in Settings: github.com/firefly-zero...
github.com
Release 0.12.1: OS X fix and system info · firefly-zero/firefly-emulator
Fix emulator on ARM OS X. Show system info in settings. Full Changelog: 0.12.0...0.12.1
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Firefly Zero (game console) @fireflyzero.bsky.social · 29/06/2026
New release! It brings completely new multiplayer connector, new audio modulators, improved audio API, 9-slice tiling, and new game menu UI. github.com/firefly-zero... #fireflyzero #gamedev
github.com
Release 0.12.0: Better multiplayer and audio · firefly-zero/firefly-emulator
Multiplayer connector got a big rewrite. It's now in Rust and with completely new UX addressing all feedback we've collected from playtests. Audio got new modulators (ADSR, Sawtooth, and Square), a...
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Firefly Zero (game console) @fireflyzero.bsky.social · 19/05/2026
Check out or new website. It has some cool photos: fireflyzero.com
fireflyzero.com
Firefly Zero: modern handheld game console with multiplayer
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Firefly Zero (game console) @fireflyzero.bsky.social · 14/05/2026
Join Firefly Zero game #2: "Nobody Expects a Jam". It's live now and it will be very fun! You have 7 days to make a Firefly Zero game with a SURPRISE. itch.io/jam/firefly-... #gamejam #fireflyzero #gamedev
itch.io
Firefly Zero Jam #2: Nobody Expects a Jam!
A game jam from 2026-05-14 to 2026-05-24 hosted by Firefly Zero. Firefly Zero Jam #2 Unexpected gamejam! Oh wait I almost forgot to introduce myself. Hi, I'm Gram , the creator of Firefly Zero . What ...
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Firefly Zero (game console) @fireflyzero.bsky.social · 23/04/2026
All the art for Firefly Zero is created not by AI but by a real artist. Alena is an author of 2 books for kids and a very talented illustrator. She created our logo, mascot, concept art for documentation, and splash screens for all system apps and the majority of games. www.instagram.com/alpo.nl/
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Firefly Zero (game console) @fireflyzero.bsky.social · 16/04/2026
New language! You can now write Firefly Zero games in Odin, a Go-like language with manual memory management. Give it a try with the latest firefly-cli: ff new --lang=odin hello docs.fireflyzero.com/dev/getting-... #odin #OdinLang
docs.fireflyzero.com
Your first app
👉 Pick the language# Firefly Zero supports lots of programming languages: 🦀 Rust 🏃 Go 🐀 C and C++ ⚡️ Zig 🐦‍⬛ Odin 🐰 MoonBit 🟦 AssemblyScript (a subset of TypeScript) Experimental: 🌙 Lua 🧪 Elixir For s...
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Firefly Zero (game console) @fireflyzero.bsky.social · 13/04/2026
New release! We bring the UX to another level with a bunch of new system apps: app installation over internet, viewers for scores and achievements, and on-device game manuals. github.com/firefly-zero...
github.com
Release 0.11.0: Installer and other system apps · firefly-zero/firefly-emulator
This release brings a lot of new system apps: Installer for installing new apps via install.fireflyzero.com Viewer for achievements Viewer for scoreboards Game manuals All system apps: https://ca...
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Firefly Zero (game console) @fireflyzero.bsky.social · 12/03/2026
Thanks to Nanobot567, we now have an official virtual QWERTY keyboard for #Rust apps: github.com/firefly-zero... It's very ergonomic and it will be integrated in some of the upcoming system apps.
A screenshot taken from Firefly Zero of a dark gray, QWERTY layout keyboard with a light gray outline around each key. The selected key, 'OK', is highlighted in blue. Above the keyboard is the text, "hello, world!"
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Firefly Zero (game console) @fireflyzero.bsky.social · 23/02/2026
If you want to print a 3D model of the prototypes we had at FOSDEM, we've tagged and compiled the right version: github.com/firefly-zero... The model includes not only the case but also stubs for the components, so you can print a model of the whole thing.
github.com
Release FOSDEM 2026 · firefly-zero/firefly-model
This is the model that we used at FOSDEM 2026. It's a bit messy and overcomplicated: we had to make some adjustments to make it easy to print on a 3D printer and to make it fit well the prototype P...
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Firefly Zero (game console) @fireflyzero.bsky.social · 20/02/2026
New release! Settings! Languages! Translations! Color schemes! New apps! New image format! AAAA!!! github.com/firefly-zero...
github.com
Release 0.10.0 · firefly-zero/firefly-emulator
Languages! You can change the interface language and games can optionally provide translations to your language. We already have translations for some system apps. We'll translate more in the next ...
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Firefly Zero (game console) @fireflyzero.bsky.social · 15/02/2026
New blog post: Why we're staying on Discord. blog.fireflyzero.com/pages/discord/ It's a story of painful digging through Discord alternatives all of which suck in their own unique way. Enjoy. #Discord #LeaveDiscord #Zulip #Matrix #Mastodon #IRC
blog.fireflyzero.com
Why we're staying on Discord
Discord Shortly after I started working on Firefly Zero, I registered a bunch of social accounts: Mastodon, Bsky, and Xitter. While I personally only use Mastodon, I want to provide everyone a conveni...
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Firefly Zero (game console) @fireflyzero.bsky.social · 09/02/2026
Stats from our stand at FOSDEM 2026: Flyers given away: 513 Stickers: 797 Emails collected: 80 Donations in the box: 22 euros New followers on socials: mastodon 22, bsky 4, xitter 1 Distance walked: 14.5 km Thank you for joining us on this experience. See you next year :) #fosdem #fosdem2026
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Firefly Zero (game console) @fireflyzero.bsky.social · 08/02/2026
Firefly Zero prototype v2 at FOSDEM 2026: www.youtube.com/shorts/e_h_6... #fosdem #fosdem2026
youtube.com
Playing Through the Gate on a 3D Printed Portable Gaming Console @fosdemtalks
YouTube video by Nostalgitech
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Firefly Zero (game console) @fireflyzero.bsky.social · 27/01/2026
This weekend we'll have a stand at #FOSDEM and that's very expensive: hotel, train tickets, new prototypes, merch, handouts, etc. If you want to help us to not go broke: DE, FR, BE, and NL banks: tikkie.me/pay/e8adscv3... Everyone else: github.com/sponsors/ors... Thank you ♥️
tikkie.me
Betaalverzoekjes via Tikkie
Eenvoudig, snel én veilig betalen. Geen gedoe met Tikkie.
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Firefly Zero (game console) @fireflyzero.bsky.social · 22/01/2026
Fitrefly Zero Gamejam #1 results are published! itch.io/jam/firefly-... #gamejam #FireflyZero #gamedev
itch.io
Top ranked games in the Firefly Zero Jam #1
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Firefly Zero (game console) @fireflyzero.bsky.social · 21/01/2026
New release! Everything is now open source! Also, installation scripts, faster grpahics, and gamejam results. github.com/firefly-zero... #gamedev #foss
github.com
Release 0.9.8: Gotta go fasta! 🏃‍➡️ · firefly-zero/firefly-emulator
Huge performance improvements in most of the drawing functions, including drawing of some images. firefly-emulator and firefly-runtime are now open-source! Give them a star. We had our first gameja...
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Reposted by Firefly Zero (game console)
deadprogram @deadprogram.com · 18/01/2026
It's not exactly a flux capacitor but it will have to do... #fosdem
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Firefly Zero (game console) @fireflyzero.bsky.social · 18/01/2026
Final day of Firefly Jam 🚨 Even a small, unfinished game is worth submitting. Progress beats perfection, especially in game jams where you have thematic and time constraints We can't wait to see where you are, what you create. Perks/merchs are already in the house #fireflyzero #jam #game #merch
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Firefly Zero (game console) @fireflyzero.bsky.social · 17/01/2026
The first day of the #jam is dope Jam tip #1 Keep it SMALL. One mechanic. One level. One idea. We're live till tomorrow 11:59 PM UTC, and you can still join us tiny.cc/firefly_jam #firefly #fireflyzero #game #indie #indiegame
gram's game for the game jam: follow fireflies
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Firefly Zero (game console) @fireflyzero.bsky.social · 17/01/2026
How’s it going so far? Share a screenshot, GIF, or struggle; we’ve got you 👀🧡 The ambiance is very well RN on @discord.com tiny.cc/firefly_disc... #firefluzero #fireflyjam #game #indiedev
tiny.cc
Join the Firefly Zero Discord Server!
Check out the Firefly Zero community on Discord - hang out with 37 other members and enjoy free voice and text chat.
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Firefly Zero (game console) @fireflyzero.bsky.social · 17/01/2026
🔥FIRE FLY JAM IS LIVE 🔥 Theme: Firefly ⏱ 48 hours in total Submit on itch.io/jam/firefly-... Good luck everyone !! #jam #fireflyzero #game #indiegame
itch.io
Firefly Zero Jam #1
A game jam from 2026-01-17 to 2026-01-22 hosted by geoffreylgv & Firefly zero. Firefly Zero Jam #1 Hi, I'm Gram , the creator of Firefly Zero . What is Firefly Zero? I'm glad you asked! Firefly Zero i...
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Firefly Zero (game console) @fireflyzero.bsky.social · 16/01/2026
The Firefly Zero Jam theme is "firefly"! Crazy, right? It can be anything related to fireflies or the word "firefly". Some ideas: - Catching fireflies - Being a firefly - Mimicking firefly light patterns ("photuris") #gamejam #fireflyzero #opensource #fosdem #game #theme #itch
jam theme
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Firefly Zero (game console) @fireflyzero.bsky.social · 16/01/2026
Today at 6:00 PM UTC, we will reveal the theme. Are you in? Why not join us here itch.io/jam/firefly-... Your game doesn’t need to be polished. It just needs to be yours. See you at 6, and we'll be happy to answer your questions on @discord.com #fireflyzero #FireflyJam #gamedev #indiedev #game
Information on the date time of the theme reveal
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Firefly Zero (game console) @fireflyzero.bsky.social · 15/01/2026
What’s your favorite thing about developing for Firefly Zero? From hobbyists to experienced developers, Firefly Zero welcomes curiosity at every level. Join us for the Firefly Jam in two (02): itch.io/jam/firefly-... #game #fireflyzero #jam #opensource #indiegame #FireflyJam #gamedev #debugging
the visual of two days left for firefly jam
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Firefly Zero (game console) @fireflyzero.bsky.social · 14/01/2026
If you’ve been curious about Firefly Zero, Firefly Jam is the perfect excuse to try it. Join the jam, three (03) days are left to join. Make it short, friendly, and Creative → www.itch.io/jam/firefly-... Make your game in any programming language, #game #fireflyzero #jam #opensource #indiegame
itch.io
Firefly Zero Jam #1
A game jam from 2026-01-17 to 2026-01-22 hosted by geoffreylgv & Firefly zero. Firefly Zero Jam #1 Hi, I'm Gram , the creator of Firefly Zero . What is Firefly Zero? I'm glad you asked! Firefly Zero i...
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Firefly Zero (game console) @fireflyzero.bsky.social · 13/01/2026
Preparing for Firefly Jam? Step one: keep your idea small and creative That's all :) I want to remind you that only four (04) days are left, so join now and invite your friends → itch.io/jam/firefly-... #game #fireflyzero #jam #opensource #indiegame
4 days left to jam at firefly zero
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Firefly Zero (game console) @fireflyzero.bsky.social · 10/01/2026
All SDKs now have two versions of DPad: one for 4 directions and one for 8. And the docs for DPad now have a pretty diagram (and a quote from Alice in Wonderland because why not): docs.fireflyzero.com/dev/input/#d... #GameDev #RetroGaming
docs.fireflyzero.com
Input
Buttons# Just feel that you’re the hardest little button to button. Firefly Zero has 4 primary buttons: N (North) on the top. S (South) on the bottom. W (West) on the left. E (East) on the right. Ther...
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Firefly Zero (game console) @fireflyzero.bsky.social · 10/01/2026
Firefly Jam is coming 🔥! There are only seven (07) days left until it starts, so join us now. Join us now on #ITCH → itch.io/jam/firefly-... #game #jam #fireflyzero #newyear2026 #fosdem #fosdem2026 #opensource
itch.io
Firefly Zero Jam #1
A game jam from 2026-01-17 to 2026-01-22 hosted by geoffreylgv & Firefly zero. Firefly Zero Jam #1 Hi, I'm Gram , the creator of Firefly Zero . What is Firefly Zero? I'm glad you asked! Firefly Zero i...
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Firefly Zero (game console) @fireflyzero.bsky.social · 06/01/2026
Our new gamejam page is live. It's written with love and care. A personal message, for you ♥️ itch.io/jam/firefly-... Tell your friends, make us famous 😎
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Firefly Zero (game console) @fireflyzero.bsky.social · 05/01/2026
New release! Stable Windows support, battery info, and blazing fast file reads. github.com/firefly-zero...
github.com
Release 0.9.0: Battery is here to stay 🔋 · firefly-zero/firefly-emulator-bin
Show battery info Windows binaries are tested and they work! Significantly speed up file reads. wasmi 1.0.0 Small bug fixes for memory access in graphics This release we mostly worked on the new d...
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Firefly Zero (game console) @fireflyzero.bsky.social · 04/01/2026
We're going to #FOSDEM! Find us in the building K, level 2. Come get some merch, try prototypes v2, and play new games. Just like last year, our stand neighbors will be amazing #Luanti folks. So if you're into #gamedev, you can't miss it. 1/3
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Firefly Zero (game console) @fireflyzero.bsky.social · 02/01/2026
Our game jam prizes are simple - Stickers for everyone who submits - T-shirts for a few winners - A signed Firefly Zero console for the top entry The real reward? Your game running on real hardware, showcased at #FOSDEM → itch.io/jam/firefly-... #game #fireflyzero #newyear #fosdem #itch
visual of firefly jame prize
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Firefly Zero (game console) @fireflyzero.bsky.social · 31/12/2025
Ending 2025 with something simple: building games together. If you want to start 2026 by shipping something fun, Firefly Jam is live. Join us when you’re ready. #game #jam→ itch.io/jam/firefly-... Happy New Year folks 🥳 🎉 #itch #firefly #fireflyzero #happynewyear #newyear #recap
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Firefly Zero (game console) @fireflyzero.bsky.social · 30/12/2025
Game jams are underrated. They’re not about winning, they’re about: - learning fast, - experimenting freely, - meeting other builders, - shipping something Join the upcoming Firefly Jam itch.io/jam/firefly-... #games #jam #itch #fireflyzero #firefly
Image inviting game devs to participate in a game jam and the advantages of game jams
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Reposted by Firefly Zero (game console)
deadprogram @deadprogram.com · 26/12/2025
Just released TinyRogue 0.2 for your holiday fun and games. Write your own roguelike games using @tinygo.org that run on the upcoming @fireflyzero.bsky.social handheld game console powered by WebAssembly. github.com/deadprogram/...
github.com
GitHub - deadprogram/tinyrogue: Fun package for creating roguelike games with TinyGo on Firefly Zero using WASM
Fun package for creating roguelike games with TinyGo on Firefly Zero using WASM - deadprogram/tinyrogue
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Firefly Zero (game console) @fireflyzero.bsky.social · 26/12/2025
🚨 Firefly Jam is live! 48 hours, one spirit, one expectation: have fun Scan the QR (or click) to join → itch.io/jam/firefly-... Stickers for all. A free signed copy of Firefly Zero for the first-ranked game. #Jam #gamedev #indiedev #webassembly
jam on itch visual
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Firefly Zero (game console) @fireflyzero.bsky.social · 23/12/2025
[Announcement] Firefly Jam is coming, 48 hours to build a game. From January 17 to 18, 2026, we’re hosting an online game jam focused on building games for the Firefly Zero console. Join the Firefly Jam: lnkd.in/g-NPhaD9 Date : Jan 17–18, 2026
Game jam flyer
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Firefly Zero (game console) @fireflyzero.bsky.social · 18/11/2025
Good news, everyone! You can now make Firefly Zero games using #AssemblyScript (a subset of TypeScript), #MoonBit (language designed specifically for #wasm), and #Lua (experimental). 1/3
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