There are two kinds of mod: installer installation and compressed package. The compressed package can be directly extracted to the mods folder in the root directory of the game, and the installation program will prompt you step by step. However, when choosing the installation path, the installer should not bind to the mods folder, but to the game root directory (mods may bind an additional mods folder, so don't move it if there is a path already filled in). There are also two ways to start the mod, that is, find a mod launcher and put it in the game root directory. There are complicated methods, but you don't need to download anything. First, enter the original game, find the community at the top of the main menu, click in, select a custom game, find the mod you want to play, and start (some may be translated as "application").