56,000‑Line DOOM Port Written in a Custom Language

A developer has recreated the classic DOOM game using 56,000 lines of code. The codebase is written in a programming language the author designed themselves. The project showcases the language's capability to handle complex logic. Source files and documentation are hosted on the Betlang website. The effort demonstrates how custom languages can be used for large‑scale projects. Community members have praised the ambition and technical depth of the work. The author provides insights into the language's syntax and compilation process. Future plans include extending the project to other classic games.