It’s hard to say at the moment, as the development of the game is not advanced enough. However the configuration required for SCUM should give a rough idea of what it will take to run Dead Matter.

Here are the minimum and recommended configurations for SCUM

Minimum configuration:
Recommended configuration:
CPU: Intel Core i5-4430 / AMD FX-6300
 CPU: Intel Core i5-6600K / AMD Ryzen 5 1600
RAM: 10 GB RAM
 RAM: 16 GB RAM
GPU: NVIDIA GeForce GTX 960 2GB / AMD Radeon R7 370 2GB
 GPU: NVIDIA GeForce GTX 1060 6GB / AMD Radeon RX 580 4GB
DX: Version 11
 DX: Version 11
OS: 64-bit Windows 7, Windows 8.1, Windows 10
 OS: 64-bit Windows 7, Windows 8.1, Windows 10
Store: 30 GB available space
 Store: 30 GB available space
Network: Broadband Internet connection
 Network: Broadband Internet connection