In order for you to play Space Engineers on Windows with minimal graphics settings, your computer must meet the following requirements
Operating System:
Microsoft Windows 10 (latest SP) 64-bit
Processor (CPU):
Intel i5 @ 3.0 GHz or higher (or AMD equivalent)
Memory (RAM):
8 GB RAM
Graphics Card:
Geforce 750/Radeon R9 270X or higher
DirectX:
Version 11
Storage:
35 GB available space
Sound Card:
DirectX® compatible on-board
In order to play Space Engineers on Windows with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
Microsoft Windows 10 (latest SP) 64-bit
Processor (CPU):
Intel Quad Core i7 @ 4.5 GHz or higher (or AMD equivalent)
Memory (RAM):
16 GB RAM
Graphics Card:
Geforce 1070 GTX / Radeon RX Vega 56 or higher
DirectX:
Version 11
Storage:
35 GB available space
Sound Card:
DirectX® compatible on-board