I just started playing 30 minutes ago and I think its worth doing my normal "free advertisement of small indie games".
The Arena seems to be about killing monsters either solo or in groups to increase your characters stats then there is a PvP arena where you challenge other players.
Lots of nostalia from NES, games like Final Fantasy... Its FREE on the microsoft store... Worth checking out.
Checking out a online battle arena multiplayer PvE/PvP game here (its free)
Microsoft store: https://www.microsoft.com/en-us/p/the-arena/9wzdncrdjw34?cid=periscope&ocid=periscope&rtc=1&activetab=pivot:overviewtab
Devs website: https://natemonster.net/index.php?g=arena
My Stream: https://www.twitch.tv/isomer_