I was thinking of doing my own modding to make this game challenging, but one of the tweaks (in particular) I want to do would be a lot of work, and if someone already made the mod, I'd just as well rather use that. Tweaks I'm looking for include:

1) Less loot. This is the mod that would take quite a while as I would have to edit every leveled item list and container, not to mention all the stuff scattered around everywhere. With vanilla, I have pretty much all the money I'll ever need by the time I reach Vegas, and I find more than enough gear to keep everything in perfect condition without having to pay for a single repair. I think this could be improved if the salvageable loot content (including from enemies) was reduced...dramatically, I'm thinking to somewhere around 10% of what it is currently. On top of that, if the gear you salvage from enemies could always be in horrible condition, that would be nice, too.

2) Everything is weighted (and dropable, for quest items). This is pretty self-explanitory.

3) Weaker/more dangerous food and water. I play on hardcoe, and while managing food and water does add an extra dimension to the game, I don't have a problem keeping enough clean water and food on hand. If someone made a mod to make hardcoe a little harder, that would be great.

3) SPECIAL is more special. I could actually probably just do this myself with very little effort. Anyway, the impact of SPECIAL is still pretty nerfed in this game. I'm thinking along the lines of using the formulas from FO classic. So carry weight would be 25*ST instead of 150 + 10*ST, and skill points could be 5+IN instead of 10+IN/2. Has anyone already done something like this?

4) Less safety. Apparently, you're guaranteed to do at least 20% of your weapon's damage on a hit regardless of armor. That's a wuss move. I don't know what other kiddy [censored] is in the game making it way too easy for me to kill everything, but I'd like a mod that raises the stakes for combat, including disabling this 20% thing. Almost everything in vanilla was a one-shot kill for me.

5) Surprise me. I don't know what other mods can kick this game up a notch in the challenge department. Suggestions? Thanks.

Oh, one other thing. If there's a mod that nerfs the experience and level cap. That would be nice, too. I maxed out at 40 long before the end game. I felt like I was getting a level every 5 minutes.