If you want bigger, bigger and more complex mods, you need the New Vegas Script Extender (NVSE). Either way, from simple quality-of-life improvements to necessary bug fixes and fun gameplay tweaks, here are the top New Vegas mods. Many fix common bugs and crashes or add additional content or even things that needed to be added but were never completed. However, out of this flawed yet incredible shell, many modders have created mods that bring the game closer to its more definitive version. Some are even compulsory you can choose to have them out of service. Almost all of the quests that appear to be optional for the first time are still related to the main conflict in some way, with a few exceptions. Unlike many Bethesda games, mods feel less like an extra and more like a necessity to keep the game cool after just one run, as everything in New Vegas is almost inextricably linked to the main quest. It was rushed work that Obsidian did their best with, but didn't have enough time to fully realize their vision. The problem is, the game is literally and figuratively unfinished. Fallout: New Vegas is a great game, arguably the best in the franchise.