Minimum:

OS: Windows 10/8/7/Vista/XP
Processor: 2 Ghz
Memory: 3 GB RAM
Graphics: Shader Model 3.0 GPU ; NVidia GeForce GTX 260 (2008) or GT 730 (2014), AMD Radeon HD 5670 (2009) or HD7570 (2012) ; the game may run with less good 3D cards, but you’ll have to lower the view distance and the rendering quality
DirectX: Version 9.0
Storage: 1 GB available space
Additional Notes: IGPs are not supported ; the game runs on Intel HD5000 but the framerate is around 20-30 fps even on minimum settings.

The Fall of the Dungeon Guardians screenshots