Photograph of Game Boy
Evan-Amos / Wikimedia Commons / Public domain

Original monochrome handheld. Backlight, IPS, audio amp, and flash-cart mods are the usual work.

Also known as: DMG, Game Boy Pocket, Game Boy Light

Published open-source PCB projects

Chiplab Game Boy cartridge board Open source · BSD-4-Clause

Chiplab Game Boy cartridge

Open Game Boy cartridge board for studying and testing cartridge-bus behavior.

Flipper Zero Game Boy Link board Open source · CC0-1.0

Flipper Zero Game Boy Link

Open adapter board connecting a Flipper Zero to the Game Boy link port.

Game Boy Camera flash board Open source · Unlicense

Game Boy Camera flash

Open LED flash-ring board for the original Game Boy Camera.

Game Boy CPLD FRAM 2 MB cartridge board Open source · CC-BY-SA-4.0

Game Boy CPLD FRAM 2 MB cartridge

Open CPLD-based Game Boy flash cartridge with 2 MB ROM and FRAM saves.

Game Boy MBC5 FRAM 2 MB cartridge board Open source · CC-BY-SA-4.0

Game Boy MBC5 FRAM 2 MB cartridge

Open MBC5 flash cartridge with 2 MB ROM and nonvolatile FRAM saves.

Game Boy Pico Link board Open source · MIT

Game Boy Pico Link

Open RP2040 interface board for the Game Boy link port.

Game Boy Printer rev. 2 board Open source · GPL-3.0-only

Game Boy Printer rev. 2

Open replacement PCB for the Nintendo Game Boy Printer.

GB Interceptor board Open source · GPL-3.0-or-later

GB Interceptor

Open RP2040 sniffer that captures Game Boy pixel and audio buses for HDMI or capture.

GB-BENCH-G1 board Open source · CC-BY-4.0

GB-BENCH-G1

Open Game Boy bench platform for hardware development and signal testing.

GB-BRK-CART board Open source · CC-BY-4.0

GB-BRK-CART

Open cartridge-bus breakout board for Game Boy hardware development.

GB-BRK-CPU-G1 board Open source · CC-BY-4.0

GB-BRK-CPU-G1

Open first-generation Game Boy CPU breakout and test board.

GB-BRK-CPU-G2 board Open source · CC-BY-4.0

GB-BRK-CPU-G2

Open second-generation Game Boy CPU breakout and test board.

GB-BRK-LINK-A board Open source · CC-BY-4.0

GB-BRK-LINK-A

Open Game Boy link-port breakout with the first connector orientation.

GB-BRK-LINK-B board Open source · CC-BY-4.0

GB-BRK-LINK-B

Open Game Boy link-port breakout with the alternate connector orientation.

GB-BRK-M-XS board Open source · CC-BY-4.0

GB-BRK-M-XS

Open compact Game Boy motherboard signal breakout board.

GB-BRK-SLOT-A board Open source · CC-BY-4.0

GB-BRK-SLOT-A

Open Game Boy cartridge-slot breakout with the first connector orientation.

GB-BRK-SLOT-B board Open source · CC-BY-4.0

GB-BRK-SLOT-B

Open Game Boy cartridge-slot breakout with the alternate connector orientation.

GB-BRK-TR-A board Open source · CC-BY-4.0

GB-BRK-TR-A

Open Game Boy test-rig interposer and signal breakout board.

GB-CART256K-A board Open source · CC-BY-4.0

GB-CART256K-A

Open Game Boy cartridge supporting 128 KB and 256 KB PLCC-32 flash devices.

GB-CART32K-A board Open source · CC-BY-4.0

GB-CART32K-A

Open ROM-only Game Boy flash cartridge for PLCC-32 flash devices.

GB-CARTPP-DIY board Open source · CC-BY-4.0

GB-CARTPP-DIY

Open DIY-friendly Game Boy cartridge dumper and flasher using through-hole parts.

GB-CARTPP-XC board Open source · CC-BY-4.0

GB-CARTPP-XC

Open compact Game Boy cartridge dumper and flasher based on the PIC18F45K50.

GB-LIVE32 board Open source · CC-BY-4.0

GB-LIVE32

Open 32 KB rapid-development cartridge with USB programming for original Game Boy hardware.

GB-MBCTEST board Open source · CC-BY-4.0

GB-MBCTEST

Open cartridge for testing Game Boy memory-bank controller chips.

TypePak board Open source · MIT

TypePak

Open Game Boy cartridge with a Sharp memory display interface.

Other catalogued projects

Mod License Notes
GBxCart RW Open source (GPL-3.0-or-later) Open cartridge reader/writer used for dumps, RTC, and save work across GB family carts.
EverDrive GB X7 / X5 Proprietary Commercial Game Boy flash carts.
FunnyPlaying IPS kits Proprietary Drop-in IPS laminates, shells, and audio boards. Closed hardware.
Analogue Pocket Proprietary FPGA handheld that plays original cartridges. Console and gateware are proprietary.

Browse these projects in the 3D PCB mod directory. Open-source rows can be shallow-cloned into the git bucket. Generated board renders belong on the artifact CDN, not in git. See the catalog wiki note.