Rust is not really there yet for game development, in my opinion. Amethyst is probably the most advanced 3D engine at the moment, but they are having some issues with picking an ECS implementation, and it's still very young.
There are a few 2D engines, but they are also not particularly mature either. Coffee looks interesting, although I haven't tried it.
For something lower-level, there's gfx.rs (Amethyst uses this), which is quite impressive. gfx-hal is quite nice for abstracting over DirectX/Vulkan/OpenGL/Metal/etc.
