However, work was very slow on the engine, since John Carmack, the main programmer of Quake, was not only developing a fully 3D engine, but also a TCP/IP networking model (Carmack later said that he should have done two separate projects which developed those things).
Namun, pekerjaannya sangat lamban di mesin, karena John Carmack, pemrogram utama Quake, tidak hanya mengembangkan mesin 3D sepenuhnya, tapi juga model jaringan TCP / IP (Carmack kemudian mengatakan bahwa dia seharusnya melakukan dua proyek terpisah yang mengembangkan hal-hal itu).