The cheapest graphics card you can play it on is an NVIDIA GeForce GTX 970. You will need at least 500 MB of free disk space to install DUO. An Intel Core i5-4590 CPU is required at a minimum to run DUO. The minimum memory requirement for DUO is 8 GB of RAM installed in your computer.
DUO will run on PC system with Windows 7 SP1 or newer and upwards. Additionally it has a Linux version.
Minimum System Requirements
Recommended System Requirements
CPU
Intel/AMD Dual Core 1,2Ghz
Intel(R) Celeron(R) CPU J1800 @ 2.41GHz
RAM
2 GB RAM
2 GB RAM
OS
Ubuntu 14.04
Ubuntu 14.04/OpenSUSE Leap 42.1
Graphics Card
OpenGL 2.1
Intel HD Graphics (Intel Bay Trail, OpenGL 3.0, Mesa 11.0.8)