Did someone say spaceport?
Yep I have a spaceport right by the international airport! You're probably referring to it directly, but yeah it's in the top-right of the first screenshot right by the international airport (that's just out of view). I've since added another launch tower for space shuttles to the space port, as well as a space elevator
How is this game compared to say, SimCity 2000?
The main difference is that in SimCity 2000 everything is in rectangular modules, but here you can build whatever you want in whatever direction you want, as long as the slope is not impossible
That part might be a bit obvious. The main other difference is that it matters where you put city services and how you design city infrastructure. The game uses a maximum of 65,000 (IIRC) agents, meaning that up to 65,000 little dudes are going to be running around your city actually trying to get from home to work and back, to parks, leisure areas, to hospitals when they get sick, etc. So if your public transit design sucks and the road design sucks, then that will have a big impact on your city as everyone will take longer to get to places, leading to more gridlock, more unhappy people, goods not arriving at stores on time, dead bodies piling up because they're not being picked up, garbage piling up, etc.
So I don't quite remember SimCity 2000 but I think you could just plop down 20 elementary schools in one place and that would satisfy the needs of your city. That wouldn't work in Cities: Skylines, you need to spread everything out, like in a real city
If you're wondering what happens if your city grows to more than 65,000 people, the game simulates the same stuff that happens but doesn't use more agents to do it. I'm not sure what impact that has in-game, as I don't really notice a difference tbh. As far as I can tell the roads are getting busier when more people move in past the 65,000 marker
The one thing in the game that's not realistic is that every single agent uses the same algorithms to decide how to get to work. They will
always pick the shortest route to get to where they're going, depending on their mode of transport. This means that if you design your city in a certain way, people driving from one district to another will all tend to use the exact same lanes, even if other lanes are free. They pick the most optimal route to get from A to B, but everybody else uses the exact same algorithm to determine that, so people going from district A to district B tend to travel along the same lane. So even if you widen your roads, that will not help in this case, as it would in real life. You can prevent this by basically giving your people really good public transit options. Less people will drive, and you will still see heavy traffic in a city 130k+ line mine, but it is very manageable and there are no real traffic jams.
I suppose that's the main difference really, the game is designed around the agent. You can follow agents around and see how they're getting from home to work. That makes it kind of cool, to see how different kinds of people use the infrastructure you've built. So say you click on somebody uneducated, he works in the industrial district and lives in the cheaper part of town, you can see how he gets to work as a way to see what could be improved in your city
Another difference worth pointing out is that you can designate districts in your city and assign different bylaws and tax laws to them. So for example my "Airport Park" contains the international airport, the space port, some shops, parks, and an industrial/office area. I've got unique tax breaks and bylaws set up for this district targetting tourists and high-tech businesses. I also have a Central Business district, a "Snobsville" hipster part of town, and a park area w/ football stadium where recreational marijuana usage is allowed (this is a stock in-game option) and more money is spent on park upkeep. Public transit is also free there IIRC
There are also a LOT of mods for this game, a lot of custom assets, game dynamics, etc. I mainly just have some extra assets installed
Is it taxing for computers?
I have a gaming rig I built.. 5 years ago I think. I haven't upgraded any of it in that time, and initially when I got it it wasn't top of the line, but it was def. above average. So.. I have no idea if that helps at all but the game runs fine on this machine