visioncortex/vtracer: https://github.com/visioncortex/vtracer
Vector graphics https://en.wikipedia.org/wiki/Vector_graphics
Rotoscoping: https://en.wikipedia.org/wiki/Rotoscoping
Sprite (computer graphics) https://en.wikipedia.org/wiki/Sprite_(computer_graphics)
E.g. pygame-web can do SVG sprites; so that you don't have to do pixel art and sprite scaling just works.
2.5D: https://en.wikipedia.org/wiki/2.5D
3D scanning: https://en.wikipedia.org/wiki/3D_scanning
"Why Cities: Skylines 2 performs poorly" (2023) ... No AutoLOD Level of Depth https://news.ycombinator.com/item?id=38160089
Wavetale is a 3D game with extensive and visually impressive vector graphics.