If you can't find the specs yourself, you can either run speccy (from Piriform, the makers of ccleaner)https://www.piriform.com/speccy/builds
or the BelArc Advisor, which Inferno used to likehttps://www.belarc.com/products_belarc_advisor
Most important are memory (RAM) and graphics card.
Almost any recent computer will have a good enough processor.
If your computer meets the specs, the problem is probably what version of the video card drivers you have, or maybe that you need a new version of a DirectX file.
And of course the game may just need a patch. They made it for consoles after all, and PC compatibility is an afterthought.
Also, the Steam version uses Denuvo DRM, which is another reason why the game may not work even if you have the system requirements.