Do you need anything else to go with this CPU, or do you already have a motherboard and RAM?
If you have nothing and are looking to build a cheap gaming PC, the cheapest option to consider is probably the Pentium Gold G5400 on an H310 mobo, or a Pentium G4560 on a B250 motherboard. Both would require DDR4 RAM.
Another option is the Ryzen 3 1200 on a B350 motherboard (B350 is recommended for gaming as apposed to A320 because you can run faster memory on the B350 and overclock the CPU if you wanted), also required DDR4 RAM.
Also on the AMD side is the Ryzen 3 2200G, which comes with an integrated GPU that is capable of playing modern games at lower resolution. Requires updated B350 motherboard or B450.