We will play a Minecraft tournament with about 100 users in a few days. The map size is 500x500 blocks. At the beginning of the tournament, all players will start in the middle of the server and run in all directions.
How much power do I need for such a project? Is 10 GB of RAM and 4 cores sufficient on an SSD root server?
Yes, that should be enough
10GB and 4 cores on an SSD root server are sufficient. But I would consider 500x500 blocks. I think 1500x1500 is more appropriate with a border that is getting smaller and smaller