The big one I got into in Fallout 4 is the Sim Settlements mod. It actually removes a lot of the tedium involved in building your settlements by providing a bunch of pre-generated buildings. All you have to do is place plots (based on the type - residential, commercial, security, farming, industrial, etc), and your settlers will build, maintain, and upgrade them themselves over time. In fact, the most recent expansion to this mod (yes, the mod has freaking EXPANSIONS) lets you turn on some REALLY well-done full city builds. You provide extra scrap to speed things along, but the settlers build the entire settlement up on their own, and the finished cities are REALLY cool.
The game I've gotten into most recently is RimWorld. Basically, you start with one or a few survivors who crash-landed onto a remote planet, and build up a settlement while dealing with assorted raiders, mechanite (think Terminator) attacks, and the occasional bug attack ala Starship Troopers. Grow food, build up industry, the whole deal. The goal is to build a spaceship and get your colonists off the planet.
Which I have yet to pull off because the game is freaking BRUTAL. Last weekend, a new attempt had 2 of my starting 3 come down with plague less than a month into the game. Then, while they were sick, a heat wave struck - putting temps at 50C - at the same time a Rhino went mad, attacked the base, and killed the non-sick guy. Then the other two died of the plague. The next game went fine for a few months, until 5 of my now 7 came down with malaria, a cold snap dropped temps to -20C every night, those mechanoids dropped an attack ship on one end of the map and started doing a psychic broadcast that started driving my people insane, and about 8 raiders (think Road Warrior) showed up at the other end of the map, set up a base, and started shelling the town with mortars guarded by machine guns. The only thing it was missing was another Bug infestation at the same time; THOSE show up in the middle of your base if you dig very far into mountains or hills, and they can wreck the stuff IN said base in seconds.
And for the record, I'm playing at one step BELOW normal, since I'm new to the entire genre.
Before that, I was playing a lot of BATTLETECH, since I was a huge fan of the TT game.
As for upcoming, I can't think of any offhand, since Fallout 76 got crossed off my list. It's not going to be an MMO - servers will be 12 people apparently - but it's going to be first person online survival with no option at launch to play on private servers, and there will be NO NPC's except for a few robots. The only humans in the game will be other players, and Bethesda is being ENTIRELY too optimistic in their beliefs that they've cured online griefing.