The Game Boy Is Still Alive: Homebrew on the DMG-01
Updated: Oct 16
Most machines go quiet when the shops stop stocking them. The Game Boy never took the hint. Decades after the last cartridge left a production line, people are still writing brand new games for the 1989 hardware, and a good number of them do it for the love of the thing rather than for money. This is the grassroots, do-it-yourself end of that story: not the boutique labels with their boxed releases, but the hobbyists, the game jams and the free tools that keep the DMG-01 a living platform.
Games made under the old rules
What makes this corner of the scene distinctive is that its makers accept the limits of 1989 on purpose. The original Game Boy draws everything on a screen of 160 by 144 pixels in four shades, built out of small 8 by 8 tiles, and homebrew developers work inside exactly those walls. Nowhere is that discipline clearer than GBJAM, the Game Boy game jam that has run on itch.io each August for over a decade. Its rules are strict by design: the original 160 by 144 resolution, no more than four colours, and every asset made from scratch during the jam. The 2016 edition alone produced 486 new games in ten days, which says a great deal about how alive the format still is.
The tool that opened the gates
For most of the machine's life, writing a Game Boy game meant hand-coding in assembly or wrestling with a C toolchain, which kept homebrew a specialist pursuit. That changed in 2019, when Chris Maltby released GB Studio, a free and open-source engine that lets someone build a working Game Boy game with almost no code at all. It did for the Game Boy roughly what cheap cameras did for photography: the barrier became imagination rather than a computer-science degree. A good share of the new games of the past few years, from weekend experiments to polished releases, began life in it.
A horror story in four shades
The clearest proof of what the tools now allow is Deadeus, built in GB Studio by the solo developer IZMA and released free in 2019 before it was ever boxed. A boy dreams that his village has three days left to live, and the game offers eleven different endings with no correct path through them.
One detail is telling: when its creator tried to register a speedrun, the submission was rejected as too short, and was accepted only once someone explained that the game had eleven endings to find. A story with real weight, running on a screen that manages four shades, is exactly the kind of thing this scene exists to make.
From a file on a laptop to a cartridge in a slot
A new game is only half the story; getting it onto genuine hardware is the other half, and that takes two kinds of device, both documented in the collection. Flash cartridges, such as the EverDrive, carry a memory card so a whole library of homebrew ROMs can run on an unmodified DMG-01.
Everdrive X7 Pro - The Flagship of the Flash Cartridges Flash Boy - Cartridge Flasher / Dumper
The the Flash Boy is the little writer that burns a finished ROM onto a flashable cartridge in the first place. Between them, any file built in GB Studio or a C toolchain can end up behaving exactly like a 1989 cartridge, which is the quiet bridge between the modern workflow and the vintage machine.
The museum's own attempt
To understand the scene from the inside, the museum built a Game Boy game of its own: a complete version of Snake, written from scratch in C, drawn with tiles and sprites, reading the joypad, growing with each bite and ending on a proper game-over screen, and finally run on a real DMG-01 through a flash cartridge. The whole project is documented step by step in the Build Your Own Game Boy Game series.
Why homebrew belongs in a DMG-01 collection
It would be easy to argue that a Game Boy collection should stop at the last official release in the early 2000s. That would miss the point. The homebrew scene proves the DMG-01 is not a closed artefact but a platform still capable of genuinely new ideas more than thirty years on. Documenting the new cartridges beside the old ones tells the fuller, more hopeful story: not only what the Game Boy was, but what it still is. These makers are part of the museum's wider guide to the Game Boy's living scene. The homebrew titles, flash carts and the museum's own Snake build are all catalogued, with photos, in the collection.
The full tour is in Still Building for the Grey Brick: A tour through the Game Boy's Living Scene.
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