I am unsure if I understand well, so just to clarify:
- Egregoria is written in Rust directly using wgpu as a graphics backend and a custom "engine" which is not really an engine as it is built with only one game in mind
- Cities:Skylines is built in C# using Unity as the game engine
> in Rust
> Egregoria is an indie city builder, mostly inspired by Cities:Skylines.
I tried to find out what techbuilt with and it seems like it's Unity and C# which surprised me a bit, but it's cool to hear.