Do you think this set is good for playing fortnite?
I'm not a fan of the power supply, the rest is okay. However, you can't conclude on the performance in games, we need more information.
Unfortunately, since the graphics card as well as the processor is of particular importance for gaming performance, but these components are not mentioned in your list, I can't tell you if this set is good enough to play Fortnite. In addition, at least components should be selected, which play in the same performance class as this gaming PC for 500 euro:
→ https://www.hardwaredealz.com/bester-gaming-pc-fuer-unter-500-euro-gamer-pc-bis-500-euro/
But I can currently recommend especially the 600 euro gaming PC:
→ https://www.hardwaredealz.com/bester-gaming-pc-fuer-unter-600-euro-gamer-pc-bis-600-euro/
The graphics card is already so good that you will not be able to reach the limits too fast in a few years' time and there will still be a lot of playability (in FullHD).
I hope I could help you! If you have any further questions and / or want to complete the missing components, so that I can tell you my opinion, then just write a comment ;-)
All relevant information is missing (CPU & GPU).
The PSU is junk and because DDR3 RAM is installed, I guess it will be some ancient Vishera processor (FX-6100 with a bit of luck also 8000 series).
Probably scrap.
