To run Last Days of Old Earth on high graphics settings your PC will require at least a 2GB GeForce GTX 770 / Radeon R9 290 with a Core 2 Quad Q9650 3.0GHz or FX-4100 CPU. Last Days of Old Earth needs a Core 2 Duo E4400 2.0GHz or Athlon 64 X2 Dual Core 4000+ processor coupled with a GeForce GTX 660 to get it to run minimum system requirements. This will return around 30FPS at 720p screen res on low graphics settings, but you can also adjust the settings further to tweak. To be able to run at all you will need at least 4 GB system memory. Your GPU is expected to be able to deliver DirectX 11.00. In short you need a 8 year old PC for best Last Days of Old Earth performance.