2 I5 3470 based systems with low profile 4GB RX 550 video cards, and 1 Ryzen 5 5500 tower, also with RX 550 video card. The video is overkill for any of the games we play, the vast majority of which are casual 2D titles. (most recently, I played Age of Fear 4, and now I'm playing Space Run) The only ones my kids play with really much of any 3D are Marvel Lego Superheroes, Minecraft, and Spintires, and several other 3D games that are about 10 years old, & would run fine on integrated graphics.
I'm finally going to replace one of the I5 3470 systems. I have 32GB memory, 1TB XD80 SSD, hard drive for additional storage, motherboard, non riplocked DVD drive, a 5 1/4" drive bay stereo speaker set, and a Tower that I've used to build systems since about 2000. Still need to decide on a mouse, mechanical keyboard, power supply & processor. Usually these days I just buy a used desktop PC & upgrade it, but this time I'm actually building my own from parts that I've bought from sales over the past 6 to 8 months.