You need access to the game to mod it, as well as the time necessary to understand how the whole thing works.

I mean, you can’t break the laws of physics. For obvious reasons, mods have always came out after the game’s been released. However, even with that, there has always been one limit that’s never been broken. It’s insane really, and shows how much quicker modding has gotten since the internet and social media truly became mainstream. Indeed, whether it’s Zelda Breath of the Wild and its armour mods or Super Mario Odyssey and its new levels, we’re now seeing modding scenes developing for games far quicker than they used to, with new titles getting them mere weeks or months after release. In recent times, it seems video game modding has sped up significantly.