Some genre names would be: Colony Sim, Base Builder or City Builder.

Another great one is Dwarf Fortress, you should give it a try if you haven’t already. It probably has the most in depth simulation of any game there is.

There is the Anno series of games, which are technically RTS games but if I’m honest I find them the most fun when I go out of my way to avoid combat/micromanagement. I’ve only played 1404, 2070, and 2205, 2070 being the best in my opinion, but it has a bad history with DRM so I’d suggest 1404 (known as “Dawn of Discovery” in the US because us americans are afraid of numbers apparently).

Edit: looking at the steam page it looks like they decided to take 1404 down and made a new page where the game is (mostly) unchanged besides requiring you to jump through all the BS hoops that 2070 did, so I’d say if you’re gonna spend money get 1404 on GOG, or if you are willing to do unspeakable things go with 2070.

I would consider them a few different genres, but they are easily my favourite types of games these days. I cateogrize them in my steam list as below.

-Colony Builders: Games about building well, a colony, often from little to nothing. Often lots of You vs Environment friction, with the natural world. Tends to have a bit more focus on the individuals that comprise the colony. Examples: Rimworld (my favourite game of all time), Dwarf Fortress, Oxygen Not Included, Stranded Alien Dawn, Space Haven.

-City Builders: A bit broader in scope than a colony builder, working more on the macro level. Friction is often economic, sometimes adjusted with the natural world. Cities Skylines is kind of the prime exampe of this, but also games like Timberborn or Anno.

-Automation: Games about building a factory that…builds things automatically. Challenge tends to be logistical complexity but some games do feature combat as well. Factorio, Dyson Sphere Program (my personal favourite), Satisfactory, and Captain of Industry are the Four Horsemen of this genre to me. Techtonica is very early still but seems to have some promise as well.

For many of these games, there is a whole world of content to explore if you are interested in mods. Rimworld players regularly run hundreds of mods, my current game has about 350. Factorio has extensive overhaul mods that can take literally thousands of hours to finish in some cases (Py’s). Satisfactory has a surprisingly robust mod scene for an early access game too.

They’re called management sims, or in the case of Factorio a factory builder.

Rimworld is a colony management sim… check out Dwarf Fortress or Oxygen Not Included for similar games

Rollercoaster Tycoon is a theme park management sim, the obvious suggestions are Planet Coaster and Planet Zoo but also check out City Skylines.

Factorio is a factory builder, I would recommend Satisfactory or Dyson Sphere Program, there’s a few handfuls of those types of games. If you want to get a little wild look into Minecraft (Java edition) w/ mods - most easily something like the FTB Infinity Evolved or one of the new Direwolf packs, it’s arguably where the factory building craze started.

I usually call them management games. Looking at the Steam tags for Factorio and RimWorld, they both have “Management” and Factorio additionally has “Resource Management”. But I think “Management” is your best bet.

I think RTS games don’t usually fall under management and instead are just called RTS.

In terms of my favourite ones, I love FTL: Faster Than Light. I’m picking it up again at the moment actually. I also like RinWorld, Oxygen Not Included, and Dungeon of the Endless.