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GBDK-2020

@gbdk2020.gbdk.org

Cross-platform C based development kit for vintage gaming consoles (Game Boy, Game Gear/SMS, NES, Analogue Pocket, Megaduck, etc). Official project account. https://gbdk.org/

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09.11.2024
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Latest posts by GBDK-2020 @gbdk2020.gbdk.org

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Black Castle 2, a new adventure for your #GameBoy, is now available for free!

user0x7f.itch.io/black-castle-2

Please like and repost!

#gbstudio #retrogames

07.03.2026 07:42 πŸ‘ 63 πŸ” 34 πŸ’¬ 7 πŸ“Œ 4
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Hello fans of nonograms/picross games!! Introducing my latest game, Walfie's Nonograms, a free Game Boy Color game featuring 150 puzzles!

Play in browser, in a Game Boy emulator, or on a real Game Boy (via flash cart)!

13.02.2026 18:46 πŸ‘ 2284 πŸ” 1031 πŸ’¬ 47 πŸ“Œ 30
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The ESPecial Jobs Early Preview Demo is out! Play it on itch: zurashu.itch.io/especial-jobs
And don't forget to wishlist! store.steampowered.com/app/4281830/...
#gamedev #indiedev #homebrew #gameboy #gb #gbc #retrogaming

23.01.2026 21:04 πŸ‘ 86 πŸ” 30 πŸ’¬ 2 πŸ“Œ 4
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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.
gbdk-2020.github.io/gbdk-2020-ga...

#indiedev #retrogaming #retrodev

04.01.2026 09:15 πŸ‘ 40 πŸ” 15 πŸ’¬ 4 πŸ“Œ 0
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Max Pirate Extra Boom! by Lemmy Hawkins Pirate action game for the Original Game Boy

I went back and updated my Game Boy game and made the game easier. Presenting Max Pirate Extra Boom!

- Health drops
- More room layouts
- Shorter waves
- Slower Zombies
- Snazzy new logo
- Various bug fixes

#Gameboy #Homebrew #GBDK #GBDK2020
lemmyhawkins.itch.io/max-pirate-e...

30.12.2025 22:59 πŸ‘ 5 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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Release Cross ZGB v2025.1 Β· gbdk-2020/CrossZGB CrossZGB is a multi-platform game engine that lets you write your own games in C or assembly for the several popular consoles. New features and improvements Improve performance Improve the built i...

CrossZGB v2025.1 is out!

A Game Engine for #GameBoy #SMS #GameGear #MegaDuck
- Improved performance
- Improved coroutines
- Level maps larger than 256 tiles
- Attribute maps for the SMS/GG
- Persistent sprites
- Linker files to allow for large projects
- New examples

github.com/gbdk-2020/Cr...

28.12.2025 22:36 πŸ‘ 10 πŸ” 1 πŸ’¬ 0 πŸ“Œ 1

Typo correction: SMS NMI handler

28.12.2025 10:57 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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GBDK Showcase A collection of GBDK/GBDK-2020 Games, Demos, Music and Programs

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:
gbdk-2020.github.io/gbdk-2020-ga...

28.12.2025 03:22 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Image of the GBDK-2020 project name in pixel font with a drop shadow and a orange and purple background

Image of the GBDK-2020 project name in pixel font with a drop shadow and a orange and purple background

#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
- SNES NMI handler
- #MegaDuck Printer

github.com/gbdk-2020/gb...
#gbdev #smsdev #nesdev

28.12.2025 03:18 πŸ‘ 16 πŸ” 10 πŸ’¬ 2 πŸ“Œ 0
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Fydo's Magic Tiles by ohnotomsutton Intense match-4 puzzle fun for Game Boy!

Fydo's Magic Tiles is now free. Merry Christmas.

ohnotomsutton.itch.io/fydos-magic-...

20.12.2025 15:51 πŸ‘ 20 πŸ” 8 πŸ’¬ 0 πŸ“Œ 2
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PixPlus Vol. II by Bipedal Studios A new selection of math-based Game Boy puzzles that turn into pictures.

Seeing so much love for PixPlus has motivated me to finish and release PixPlus Vol. II. With minor control improvements, enhanced graphics and 16 brand new puzzles, it's the ideal experience for those who want more PixPlus!
bipedal-studios.itch.io/pixplus-vol-ii

#gameboy #gbdev #homebrew

17.12.2025 04:46 πŸ‘ 9 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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GBDK Showcase A collection of GBDK/GBDK-2020 Games, Demos, Music and Programs

The #ZGB, #CrossZGB and #GBDK games in #gbcompo25 can also be filtered and searched in the GBDK Showcase:(as well as previous #gbcompo years)

gbdk-2020.github.io/gbdk-2020-ga...

And #gameboyshowdown jam entries:
gbdk-2020.github.io/gbdk-2020-ga...

13.09.2025 17:26 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

#ZGB, #CrossZGB and #GBDK games in #gbcompo25:
(cont)

demolissagegames.itch.io/the-sweeping...
rodrigocard.itch.io/text-reader-gb
jeffzzq.itch.io/western-road
arvex.itch.io/x-frame
kabcorp.itch.io/dmg-keygen (music)
fingerflinger.itch.io/spaceballs
3/3

13.09.2025 17:26 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

#ZGB, #CrossZGB and #GBDK games in #gbcompo25:
(cont)

studio-anchor.itch.io/dropblox
tardigrade-nx.itch.io/game-of-life...
bownly.itch.io/ningami-2
stormplay.itch.io/operation-fo...
dancar.itch.io/puzzleboy-lo...
plyr0.itch.io/qulqy
2brownboyz.itch.io/restaurant-r...
2/3

13.09.2025 17:26 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Tomato-do by _oshf Productivity Timer Tool

#ZGB, #CrossZGB and #GBDK #GameBoy games in #gbcompo25:

CrossZGB
oshf.itch.io/tomato-do

ZGB
distractedcoder.itch.io/luigi-mansio...

GBDK Entries
retrobitninja.itch.io/bomb-tracker
urbanzero.itch.io/bunkerboy
thedarktiger.itch.io/crate-pusher
dij.itch.io/d-u-b
drludos.itch.io/dmg-vs-super...
1/3

13.09.2025 17:26 πŸ‘ 3 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0

Lots of new, cool #GBDK #GameBoy releases lately.

The one below is even open source on github
github.com/NesHacker/La...

11.08.2025 05:08 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Trailer: Game of Life Kuzushi, my new Game Boy game
Trailer: Game of Life Kuzushi, my new Game Boy game YouTube video by Robert Glucose

My new #gameboy game is out! 😊
'Game of Life Kuzushi' is a mix between Conway's famous Game Of Life, and a block breaker game.

Trailer: www.youtube.com/watch?v=igAN...
Home page: tardigrade-nx.itch.io/game-of-life...

10.08.2025 15:45 πŸ‘ 6 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Q-Dash Mission by Bipedal Studios Defeat the Neeskools with your brand new CLQ-Dasher vehicle!

Are you ready to hop onto your CLQ-Dashers and defeat the Neeskools? Check out the brand new Q-Dash Mission for Game Boy!
bipedal-studios.itch.io/q-dash-mission

#gameboy #gbdev #homebrew #retro #pixelart

05.08.2025 19:51 πŸ‘ 7 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Another well made #GBDK based #GameBoy game released!

24.07.2025 21:09 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

An interesting thesis project / #GameBoy paint program (made with #gbdk).

The author (Nikolai Delhaize) is looking for people to submit pictures drawn in the paint program.

15.07.2025 07:13 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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GitHub - purefunktion/Droneboy: Drone music application for Gameboy Drone music application for Gameboy. Contribute to purefunktion/Droneboy development by creating an account on GitHub.

Droneboy 1.08 is out now!
This update brings lower-sounding wave types, a basic chord sequencer with BPM control, MIDI support, and more.
github.com/purefunktion...

02.06.2025 07:13 πŸ‘ 4 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Game Boy Competition 2025 A game jam from 2025-05-31 to 2025-09-30 hosted by avivace, bbbbbr & Larold's Retro Gameyard. Stay updated on https://bsky.app/profile/gbdev.io Create original games, demos, homebrews tools and music ...

4 days left until #gbcompo25 kicks off and we still have a few sponsor seats available (starting at $150).

If you publish homebrew games and want to support the retro dev scene while showcasing your products and/or services, that's your perfect chance! Learn more about the event and reach out!

27.05.2025 21:07 πŸ‘ 32 πŸ” 13 πŸ’¬ 1 πŸ“Œ 0
Image of the text "Cross ZGB" with a game-pad graphic located between the two words. Pixelated style with dithered gradients from orange to magenta to  black. Yellow background

Image of the text "Cross ZGB" with a game-pad graphic located between the two words. Pixelated style with dithered gradients from orange to magenta to black. Yellow background

CrossZGB v2025.0 is out!
Game Engine for #GameBoy #SMS #GameGear #MegaDuck

New features
- Coroutines (cooperative multi-tasking for logic)
- Custom build rules
- Collision groups
- Improved SMS/GG audio drivers
- Var width font & Dynamic map examples
- Features & fixes

github.com/gbdk-2020/Cr...

25.05.2025 08:01 πŸ‘ 21 πŸ” 9 πŸ’¬ 2 πŸ“Œ 0
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GBDK Showcase A collection of GBDK/GBDK-2020 Games, Demos, Music and Programs

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:
gbdk-2020.github.io/gbdk-2020-ga...

24.05.2025 08:01 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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#GBDK 2020 v4.4.0 is out!

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

New examples!
- #MegaDuck Laptop hardware
- Text Dialog @laroldsjunkyard.bsky.social
- #GameBoy MBC7 Accelerometer & MBC3 RTC

github.com/gbdk-2020/gb...

#gbdev #smsdev #nesdev

24.05.2025 07:52 πŸ‘ 30 πŸ” 12 πŸ’¬ 1 πŸ“Œ 1
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πŸŸ‘πŸ”΄Match 4 ya esta disponible en itch.io.

Un clon de Connect 4 para Game Boy, Sega Genesis / Mega Drive y tarjetas de desarrollo compatibles con MicroPython con crossplay entre sistemas.
#gameboy #genesis #gbdk #sgdk

kyuchumimo.itch.io/match-4

05.05.2025 21:51 πŸ‘ 7 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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Check out our new game! Scroll Space is a fast-paced, 2D infinite scroller for the original Game Boy with procedurally generated maps and destructible terrain.

cailangames.itch.io/scrollspace

#GameBoy #GBDK

19.04.2025 23:21 πŸ‘ 29 πŸ” 11 πŸ’¬ 3 πŸ“Œ 1
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SCROLL SPACE //

"is a fast-paced, 2D infinite scroller for the original Game Boy (the "DMG" from 1989) with procedurally generated maps and destructible terrain."

#GameBoy

cailangames.itch.io/scrollspace

19.04.2025 05:26 πŸ‘ 13 πŸ” 5 πŸ’¬ 1 πŸ“Œ 0
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#GBCompo25 is on the way!

We're looking for help designing this year's #GBCompo logo! There's a modest $250 USD bounty.

If you're a graphic designer w/ retro & #pixelart & logo experience, reply w/ portfolio link or dm for email info!

For reference here's GBCompo 21&23 logos
#GameBoy #Retrogaming

11.03.2025 08:53 πŸ‘ 37 πŸ” 16 πŸ’¬ 8 πŸ“Œ 2

This Kickstarter marks the very first two physical NES games making use of gbdk-nes - the NES backend of gbdk-2020 which powers a good deal of the BB Studio engine.

These two puzzle games will have a physical space on my shelf... as well as a fuzzy feeling inside.

#gbdk-2020 #nesdev #retrogaming

07.03.2025 23:30 πŸ‘ 12 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0