Greetings. That price is pretty limited for gaming at this time.
If you can go up to $700, I'd look at this pre-built: https://www.microcenter.com/product/626473/hp-pavilion-gaming-computer
Here's what I would consider good for a entry level gaming PC - you are looking at about $900 with the video card.
Submit photos and a description of your PC to our build showcase
See other custom PC builds and get some ideas for what can be done
Services starting at $149.99