X-Plane 11.50+, X-Plane 12
Windows 8+, Mac OS 10.14+ (Apple M1 not supported) or Linux 14.04 LTS or compatible, 64 bit mode
Disk Space: 4 GB

Minimum:
CPU: Intel Core i3, i5, i7, or i9 CPU with at least 4 cores, or AMD equivalent
RAM: 8 GB RAM
Video Card: a DirectX 11-capable video card from NVIDIA or AMD with at least 4 GB VRAM

Recommended:
CPU: Intel Core i5 8600k or Ryzen 5 3500 or better
RAM: 16-24 GB RAM
Video Card: a DirectX 12-capable video card from NVIDIA or AMD with at least 6 GB VRAM (GeForce GTX 1070 or better, or similar from AMD)