To install a wide variety of popular mods for Fallout 4, players will first need to install F4SE or the Fallout 4 Script Extender. Created by modders Ian Patterson, Stephen Abel, and Brendan Borthwick, F4SE doesn’t add much to Fallout 4 alone. Instead, it serves as an essential resource for modders, expanding scripting capabilities and laying the groundwork for mods introducing new and complex content.