To write a "proper paper" on Clash of Clans (CoC) server files, you should treat it as Technical Specification Reverse Engineering Case Study
The "Clash of Clans server files" are not a leak of the actual engine running the game, but rather a collection of reverse-engineered software designed to trick the game client into thinking it is connected to an official server. While they provide a sandbox for developers to study network architecture and game logic, they are legally contentious and technically difficult to maintain against the constant updates of the official game. clash of clans server files