This looks like its probably the closest thing your going to get to a fallout style MMO ( besides of course fonline ^^) except for maybe that stalker online game? I don't know that wouldn't work on my computer so know what? fuck stalker online!
Fallen Earth has the whole faction territory control thing, you can fight over ''little vegas'' and other territories, and your faction gets rewards.
and it has item crafting, and of course the whole wasteland vibe.
( i havent played the game yet, am downloading it right now, and will give you my report.)
one weird thing about the game is aside from getting guns and axes and stuff you can get active spells? one looked like this cold spell, so thats kind of weird. But it looks fairly good.