Wolfenstein 3D for Gameboy Color on custom cartridge (2016)
Summary
A detailed hobbyist write-up about building a custom Gameboy Color cartridge to run Wolfenstein 3D, including hardware revisions (Rev.C and Rev.D), a CPLD-based replacement for the MBC1, RAM/ROM optimizations, and co-processor integration. The article covers practical hardware decisions, testing, tooling, and future ideas, with links to the Github repository and PCB vendors.