#gbdk — Public Fediverse posts

Poll results are in! Mostly the same as 2024. :)

(What's the MAIN way people play #GameBoy / Color games)

Combined results from Mastodon, Bluesky, and barely any Twitter this year. Very un-scientific and un-rigorous! 😅

See: https://mastodon.gamedev.place/@bbbbbr/116730125497176484
#gbdev #gameboycolor #retrogaming #gbdk #gbstudio #rgbds

Been a few years, return of the Game Boy Screen poll!

What's the MAIN way you play #GameBoy / Color games?

(SGB / GB Player people: no room, you gotta shout it in comments)

Curious what people use since supporting OEM screens takes more effort for devs.

#gbdev #gameboycolor #retrogaming #gbdk #gbstudio #rgbds

Thanks for the kind words, drawings and suggestions about #QRPaint!

New version with few a updates.
- Game Boy Printer support
- Hold B for fast cursor
- Analogue Pocket build

GB Printer had light testing, if you find issues let me know!

https://bbbbbr.itch.io/game-boy-qr-paint
#GBDK #RetroGaming #PixelArt
#GameBoyColor #GameBoy

Draw on the Game Boy and share direct to your phone with a #QRCode! No extra hardware and without the internet.

#QRPaint is a small paint program for the #GameBoy with a fun way to export drawings.

- 96x96, B&W due to QRCode size and no PNG compression yet
- Emulator .sav file can be opened in paint programs as a png (last drawing exported as QRCode)

https://bbbbbr.itch.io/game-boy-qr-paint

- Cursor movement could still use improving
- Open Source :)

#GBDK #RetroGaming #PixelArt #GameBoyColor

The Year Wrapped for #GBDK & #ZGB!

2025, another good year for releases! Here's a browse of #GameBoy, #NES & #SMS/#GameGear games people made with #GBDK2020.

Check out the gallery & give some a try, most free to download & play.
https://gbdk-2020.github.io/gbdk-2020-gallery/?yearReleased=2025

Congrats everyone! There were 73 releases for 2025 in total (that I know about). Includes released demos in addition to completed games.

Most tags are clickable as filters, plus other ways to sort and search.

#indiedev #retrogaming #retrodev

GBDK-2020 is an #opensource C development kit for the #GameBoy/Color, #MegaDuck, #SMS, #GameGear and #NES

To see examples of games and programs made with #GBDK visit our showcase:
https://gbdk-2020.github.io/gbdk-2020-gallery/

#GBDK 2020 v4.5.0 is out!

- HRAM allocation + example
- SRAM Bank new # pragma_dataseg
- zx0 compression
- png2asset fixes and features
- Many other fixes & features

New examples!
- MBC5 Rumble
- SMS NMI handler
- #MegaDuck Printer

https://github.com/gbdk-2020/gbdk-2020/releases/tag/4.5.0

#gbdev #smsdev #nesdev

Den of Snakes, a new homebrew game for the Four Player #GameBoy adapter (dmg-07).

- The title screen oversells it, gameplay is very basic :)
- If you have a 4 Player adapter and play it, would love to see pix.
- Find bugs or problems? let me know.

Rom on Itch:
https://bbbbbr.itch.io/den-of-snakes-four-player

Open source (C / #GBDK):
https://github.com/bbbbbr/gbdk-gb-4-player

#retrogaming #gbdev #nintendo #pixelart

In the breakdown by version people are mostly using current releases (as in other gb jams) for #GBstudio, #GBDK and #ZGB when making games.

Though a few people use (much) older versions.

What tools were used to make #gameboy games in #gbcompo25 ? Similar to previous compos + new tooling.

- #gbstudio main share
- #asm, #gbdk / C, #zgb a couple
- New! #GBBasic #libgb++ #MatlabGB

"Unknown" == likely #asm (#rgbds, #wladx, etc)

Data using: https://github.com/bbbbbr/gbtoolsid
#retrodev #gbdev

New release of #gbtoolsid: 1.5.3

A command line & web app for identifying tools used to build #GameBoy ROMs (such as #GBDK, #GBStudio, etc)

Changes over last few versions:
- Detect GBBasic 1.1
- Detect Cross ZGB 2025.0
- Detect Matlab GB Rom Creator

Console: https://github.com/bbbbbr/gbtoolsid/releases
Web: https://bbbbbr.github.io/gbtoolsid_web/

#gbdev #retrogaming

#Minesweeper on the #GameBoy as it was meant to be played 😎

Forked a open source #GBDK minesweeper by Alberto Cozzi to add #SuperNintendo Mouse support via the link port.

https://github.com/bbbbbr/mine_gameboy_snes_mouse

After a SNES Mouse the next logic step would be... a USB Mouse on #GameBoy.

Modified the Inside Gadgets USB keyboard adapter firmware to work with a mouse.
https://shop.insidegadgets.com/product/gameboy-usb-keyboard-adapter/

Open source #GBDK example:
https://github.com/bbbbbr/gameboy-usb-mouse

Prompted by a recent GB paint program demo, taking a lil detour to try hooking a #SNES Mouse directly up to #GameBoy (snes controller protocol over link port).

Commited a few crimes with the latch and clock polarity (signal inverter not here yet), but it still manages to ~work on a DMG.

#gbdk #retrogaming

The paint program demo in question:
https://www.nikolaidelhaize.com/gameboypainter.html

@pixelambacht It's a nearly identical clone with a few register address and bits changed.

Kind of a pain to rom patch GB games for it, but not hard to target if you're building games from scratch (it's a build switch in #gbdk , though if you do music you need a modified sound driver).

The MegaDuck people never made any games that used the link port, but I determined it has identical behavior and pinout as Game Boys. The port is bare header pins but easy to make an adapter for.

moving background shooting, placeholder assets
#gbdk #gbdev #gamedev

#GBDK-2020 v4.4.0 is out!

- Improved #NES support @michel_iwaniec
- SDCC 4.5 compiler
- Added Linux ARM binaries
- Many fixes & features

New examples!
- #MegaDuck Laptop hardware
- Text Dialog @laroldsjubilantjunkyard
- #GameBoy MBC7 Accelerometer & MBC3 RTC

https://github.com/gbdk-2020/gbdk-2020/releases/tag/4.4.0

GBDK is an #opensource C development kit for the #GameBoy/Color, #MegaDuck, #SMS, #GameGear and NES

#gbdev #gamegear #smsdev #nesdev #retrodev #indiedev #retrogaming