Here is the full build
Case
CORSAIR 275R AIRFLOW TEMPERED GLASS GAMING CASE
Processor (CPU)
AMD Ryzen 3 3100 Quad Core CPU (3.6GHz-3.9GHz/18MB CACHE/AM4)
Motherboard
ASUS® PRIME A320M-K: Micro-ATX, AM4, USB 3.0, 6GB/s
Memory (RAM)
16GB Corsair VENGEANCE DDR4 2400MHz (2 x 8GB)
Graphics Card
4GB...
That system should be able to run minecraft and fortnite really well tho i do believe your overspending on the cpu maybe downgrade to a ryzen3 3100 to save a bit of money you dont need the Ryzen 5 3600.
Hopefully you found this helpfull