This mod allows you to repair your goods in a more sensible manner. It lets you use items that you'd normally just skip over and sell to fix your stuff. Glue your armor back together or give it a good scrub with Abraxo. You can use hammers to bash your weapons back together and repair them with items that share similar properties. You can use a baseball bat to fix up the stock of your rifle. If you like to make a lot of caps repairing the stuff you find, then you'll want this mod.
#4 Type 3 Cute Country Girl Cass and Presets
I've never seen such a wonderfully done companion redesign. Cassidy is adorable, and it's still her. Unlike other character mods, she isn't all dolled up like an anime character or wearing slutty undergarments. She's still got her jeans, jacket and cowboy hat. If you want to give her something a bit more protective than what she's wearing, then you will have to install another mod to do so.
#3 Real Time Settler
This mod changes the game entirely. It allows you to build a settlement, let it grow and develop, and ultimately defend it. Your settlement can become the architectural beacon of the Mojave. I can’t recommend this mod enough. Even though it's creator is no longer modding the game, it has been placed into good hands.
#2 Project Nevada
It's not a traditional overhaul, so don't mistake it for that. Though it offers many subtle changes to the game itself, you can pick and choose modules to suit your style, allowing you more freedom than other mods like this. You can pick from a rebalancing module, cybernetic implants and new weaponry and armor. There's a dynamic crosshair, and you can now even sprint! This mod is a must have for everyone who’s fed up of the game’s vanilla combat system.
nVamp is a huge overhaul mod designed to seamlessly integrate many of the mods available out there, like those on this list, so everything flows and works together as they should. It brings you bug fixes, stronger enemies, and you can even find yourself stumbling into battles. There are new areas to explore, and the entire Mojave will come alive like you've never seen it before. You're sorely missing out on an incredible experience if you pass this up.