I have around 2000 PLN (530$) for the whole (desktop) computer, so I can't buy any parts that cost more than 250$
For the CPU and GPU, I recommend: AMD Ryzen 5 3600X ($245 at Best Buy): This is still a good cpu for budget gamers NVIDIA GeForce GTX 960 ($199): The game recommends GTX 970 which is just a tier higher so GTX 960 should be fine.
Just wait until the price of pc components isn't crazy and also save up to $630 (2,312 PLN) --- Post updated --- Here's a a list of parts https://pcpartpicker.com/guide/J4V323/entry-level-intel-gaming-build