Firefly Zero (game console)
@fireflyzero.bsky.social
A modern handheld game console with effortless multiplayer. It's fun to play, alone or with friends, and easy to program.
Pinned
Firefly Zero: modern handheld game console with multiplayer
fireflyzero.com
Hello World! Firefly Zero is an in-development handheld game console that runs #wasm and supports same-room multiplayer. It is written in #Rust, runs on #ESP32, and will be fully open-source. We already have a working desktop emulator and Rust and Go SDKs. Sounds fun? Stay tuned!
fireflyzero.com
fireflyzero.com
New release! Everything is now open source! Also, installation scripts, faster grpahics, and gamejam results.
github.com/firefly-zero...
#gamedev #foss
github.com/firefly-zero...
#gamedev #foss
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...
github.com
January 21, 2026 at 9:18 AM
New release! Everything is now open source! Also, installation scripts, faster grpahics, and gamejam results.
github.com/firefly-zero...
#gamedev #foss
github.com/firefly-zero...
#gamedev #foss
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
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
January 18, 2026 at 9:09 AM
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
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
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
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
January 17, 2026 at 9:39 PM
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
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
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
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
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.
tiny.cc
January 17, 2026 at 5:45 PM
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
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
🔥FIRE FLY JAM IS LIVE 🔥
Theme: Firefly
⏱ 48 hours in total
Submit on itch.io/jam/firefly-...
Good luck everyone !!
#jam #fireflyzero #game #indiegame
Theme: Firefly
⏱ 48 hours in total
Submit on itch.io/jam/firefly-...
Good luck everyone !!
#jam #fireflyzero #game #indiegame
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...
itch.io
January 17, 2026 at 12:12 AM
🔥FIRE FLY JAM IS LIVE 🔥
Theme: Firefly
⏱ 48 hours in total
Submit on itch.io/jam/firefly-...
Good luck everyone !!
#jam #fireflyzero #game #indiegame
Theme: Firefly
⏱ 48 hours in total
Submit on itch.io/jam/firefly-...
Good luck everyone !!
#jam #fireflyzero #game #indiegame
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
Some ideas:
- Catching fireflies
- Being a firefly
- Mimicking firefly light patterns ("photuris")
#gamejam #fireflyzero #opensource #fosdem #game #theme #itch
January 16, 2026 at 6:00 PM
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
Some ideas:
- Catching fireflies
- Being a firefly
- Mimicking firefly light patterns ("photuris")
#gamejam #fireflyzero #opensource #fosdem #game #theme #itch
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
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
January 16, 2026 at 7:59 AM
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
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
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
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
January 15, 2026 at 9:35 AM
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
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
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
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
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...
www.itch.io
January 14, 2026 at 10:51 AM
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
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
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
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
January 13, 2026 at 10:37 AM
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
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
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/dev/input/#d...
#GameDev #RetroGaming
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...
docs.fireflyzero.com
January 10, 2026 at 1:52 PM
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/dev/input/#d...
#GameDev #RetroGaming
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
Join us now on #ITCH → itch.io/jam/firefly-...
#game #jam #fireflyzero #newyear2026 #fosdem #fosdem2026 #opensource
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...
itch.io
January 10, 2026 at 6:01 AM
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
Join us now on #ITCH → itch.io/jam/firefly-...
#game #jam #fireflyzero #newyear2026 #fosdem #fosdem2026 #opensource
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 😎
itch.io/jam/firefly-...
Tell your friends, make us famous 😎
January 6, 2026 at 6:23 PM
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 😎
itch.io/jam/firefly-...
Tell your friends, make us famous 😎
New release! Stable Windows support, battery info, and blazing fast file reads.
github.com/firefly-zero...
github.com/firefly-zero...
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...
github.com
January 5, 2026 at 9:36 AM
New release! Stable Windows support, battery info, and blazing fast file reads.
github.com/firefly-zero...
github.com/firefly-zero...
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
- 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
January 2, 2026 at 10:01 AM
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
- 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
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
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
December 31, 2025 at 3:06 PM
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
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
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
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
December 30, 2025 at 8:01 AM
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
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
Reposted by Firefly Zero (game console)
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/...
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 - 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
github.com
December 26, 2025 at 1:03 PM
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/...
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/...
🚨 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
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
December 26, 2025 at 8:47 AM
🚨 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
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
[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
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
December 23, 2025 at 12:08 PM
[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
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
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
1/3
November 18, 2025 at 5:12 PM
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
1/3
New release! New UI, new games, new screenshot format, and blazing-fast multiplayer.
github.com/firefly-zero...
#firefly #release #retro #handheld #emulator
github.com/firefly-zero...
#firefly #release #retro #handheld #emulator
Release 0.8.0. New UI, new games, new screenshot format · firefly-zero/firefly-emulator-bin
Screenshots are now stored in custom format instead of PNG so that we can read them on device without painful decompression. Use firefly_cli shots download command to extract screenshots as PNG.
Th...
github.com
September 12, 2025 at 5:36 PM
We're going to #hackfest! It's a small cozy conference this Saturday in #Enschede, a small city on the east of Netherlands, on the border with Germany. Tickets are just 10 euros. We'll show our latest prototypes and designs for the final device.
hackfest.nl
@hackfestnl.hsnl.social.ap.brid.gy
hackfest.nl
@hackfestnl.hsnl.social.ap.brid.gy
Home
HackFest is a Hacker festival in Enschede. It aims to make technology and knowledge accessible to everyone, promotes creativity and stimulates both social and economic innovation.
hackfest.nl
September 9, 2025 at 12:35 PM
We're going to #hackfest! It's a small cozy conference this Saturday in #Enschede, a small city on the east of Netherlands, on the border with Germany. Tickets are just 10 euros. We'll show our latest prototypes and designs for the final device.
hackfest.nl
@hackfestnl.hsnl.social.ap.brid.gy
hackfest.nl
@hackfestnl.hsnl.social.ap.brid.gy