Mafia Definitive Edition Script | Hook

You're referring to the Mafia: Definitive Edition Script Hook!

A Script Hook is a custom script that interacts with the game's code, allowing players to modify or add new features to the game. In the case of Mafia: Definitive Edition, a Script Hook can be used to create custom missions, modify existing ones, add new vehicles, characters, or even change the game's mechanics. Mafia Definitive Edition Script Hook

Here's an example of a simple Script Hook that enables "No Clip" mode, allowing players to walk through walls and objects: You're referring to the Mafia: Definitive Edition Script