Extract text from Game Boy Color ROMs (CGB)
To convert CGB ROMs to another format, you need Esri CityEngine or other Game software.
To convert other file formats to the "ROM File / 3D Rule" file type, you need software like Esri CityEngine or a similar tool.
The .cgb file extension typically represents a Game Boy Color ROM containing a binary dump of a classic Nintendo cartridge. Alternatively, it is used as a compiled CGA rule file by Esri CityEngine for procedural 3D city modeling.
To open the ROM variant, users rely on emulators like VisualBoyAdvance or RetroArch. The 3D rule variant requires an expensive enterprise license for Esri CityEngine.
Both versions of the .cgb file present significant usability challenges. They are highly proprietary, closed-source binary formats. ROM files cannot be directly edited, while CityEngine rule files are compiled, meaning the original readable text logic is hidden. Neither format is supported by modern web browsers or standard operating systems natively.
Standard conversion is mostly impossible. ROM files can sometimes be patched with IPS files, and CityEngine environments can export 3D geometry to OBJ or FBX, but the .cgb file itself cannot be converted to a readable text or standard document format.
This file format is difficult to open or convert because it contains compiled machine code meant for specific vintage hardware or specialized enterprise engines. Often only the original software can properly read or export the data. However, convert.guru can still identify the file format, inspect the file, and show text or internal content. Just drag and drop your file to see what it is and convert it if an embedded or supported format is detected.
Convert.Guru analyzes your CGB file, detects the exact format, and lets you read the text inside.
Users also converted CBG, ORC, VSB and BSV files.
If you want to convert CGB file to , you can use Esri CityEngine or similar software from the "Game Emulation & 3D Modeling" category. In the File menu, look for Save As… or Export….
To convert files to CGB, try Esri CityEngine or another comparable tool in the "Game Emulation & 3D Modeling" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our CGB converter.