Xenia is an open source research project for emulating Xbox 360 games on modern PCs.
It's progressing well and being developed actively.
1.0.2503 / 18-10-2021
Windows: 7+ 64-bit
Linux: Few major pieces need cleanup before they can proceed, listed with the cross-platform tag.
Mac: It will likely remain unsupported until Apple supports Vulkan
CPU: x86 processor supporting AVX
GPU: Vulkan or D3D12 compatible GPU