I called it a clone because it's the same software with the same look and feel, the same features, and the same invite rules. It's an obvious clone of lobste.rs the website, only even more exclusively tailored to a niche audience.

They actually even have the same text on their stat page about their pledge drive, which clearly they did not do, but was in fact on lobste.rs.

https://lobste.rs/stats https://gamedev.city/stats