If you want to get into pc gaming without spending a fortune then mounting a graphics card in your current workhorse pc or even buying second-hand system to install a card and uprate the graphics performance to match more gaming software titles might be the solution.
The NVIDIA GeForce GT 1030 specification would be a good choice, get the one with DDR5 memory – low-power consumption, available with low profile fittings to fit in even some mid-size office workstations (down to SFF: Small Form factor cases) and some models are fan-less – no noise! Jump to Amazon