u/AzemOcram

I took a few material science courses in college and I was wondering about the materials needed to build this kind of rotating cylinder. Can this be made with currently manufactured space age materials or does it need carbon nano-materials?

Main cylinder has roughly 80 km diameter and 400 km length. It rotates fast enough to provide 1 g Earth normal simulated gravity. The entire interior of the main habitation cylinder is entirely urban with an even distribution of low rise buildings, mid rise buildings, and greenspaces. I was thinking about dividing the blocks by 9 different masses and using many sudoku puzzles to evenly distribute them but I don't know if that's best.

There is a smaller counter rotating cylinder with the outside serving as a simulated sky for the urban main habitation cylinder. I'm thinking that the inner cylinder would have space ports near the poles and greenspace for the rest. Between these 2 cylinders, it's designed to be independent for food and oxygen.

The whole thing is protected by a non-rotating hull, it might have microgravity infrastructure but the main purpose is to protect the interior.

I have wanted to make a 3D SimTower-like game since 2008 (back in grade school). I never had the ambition to make my own game from the ground up, always contributing to open source projects or making mods. I went to college and learned programming but I haven't used any of my programming or IT skills much since I became unemployed (and subsequently got a bit of a windfall). I taught myself pixel, vector, and 3D art. I turned my freshman programming project battleship game back in 2016 in C into a simple ASCII SimTower-like demo in C++. I made a board game in Tabletop Simulator and scripted it. I'm not looking to make money per sé, I just want to make my dream into a reality.

What should I do? How should I start? What kind of game engine should I use? This is mostly a passion project but also a way to refresh my skills.