Made by one person.
Relic is SkyNet7890's server: his idea of what Bedrock PvP should be, built one system at a time.
Who
SkyNet7890 designs Relic, decides every mode and every rule, and tests the features himself on his own client. There is no studio behind it and no publisher.
He works with a team of AI agents that write and check code under his direction. Every change has to pass the server's automated checks before it can reach the live server.
What it is for
The best place on Bedrock to practise PvP and to play it: bots good enough to fight in every mode, the modern modes taken seriously, and games you will not find anywhere else.
He is open to ideas and to criticism. If something is wrong or missing, say so with /report in game; it goes straight on the board he reads.