Hey, thanks so much for the kind words!!
So .ron stands for "Rusty Object Notation", it's a data format native to the Rust ecosystem, kind of like JSON. it's not something Blender can open directly.
The levels are stored as sector-based geometry (similar to how the Tomb Raider Level Editor works) rather than as traditional 3D meshes, so there's no straightforward way to open them in Blender right now. that said, all the geometry data IS there (vertex positions, UVs, textures etc.) so an export-to-OBJ feature is something that could definitely be added down the line.
I'll keep it in mind as a feature request! and yes, playable game is absolutely the goal. thanks for checking it out!