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gameboy development guide

Last update: Thu Apr 9 22:18:08 2020
nintendo-game-boy-icon.pngSee my other Gameboy related pages
The goal of this page is to make a logical, simple workflow and entry point on how to start from an idea to a game running on your physical Gameboy.

I - Materials

Make images

Make sprites or extract them from existing games with GbReaper.

Make sounds

For making simple sounds, use that : GBSoundDemo.

II - Coding

Coding the game

My "guide" Gameboy guts and programming but in a nutshell:
  • Code in ASM if you want to make a serious, complex game
  • Code in C if you're ok with a small, casual game and ready to have average performance

  • I code in C so my TL;DR is:
  • Install the latest sdcc
  • Install GBDK-n
  • Edit the GBDK-n scripts to use latest sdcc
  • VS code or Eclipse work to code in C
  • You're good to go, start coding!
  • Testing the game

  • The best is BGB and runs on windows or Linux under wine
  • visualboyadvance runs also on Linux but has a worse reputation than bgb so keep it as a second option in case
  • III - Making a physical cartridge

    Making the PCB

    The 32 kB PCB is what you want, and more confusing details on the gameboy homebrew cartridge page.

    Writing the ROM

  • Gameboy homebrew cartridge writer client software in Python3 to upload your code to the EEPROM
  • Assemble

  • Solder the EEPROM on the PCB, then you're done
  • All content on this site is shared under the MIT licence (do what u want, don't sue me, hat tip appreciated) ~ Formerly known as (AlanFromJapan [2009 - 2020])