This is Team King.
Guard your Kings and hold your crowns as long as possible to score points. Whoever scores the most points wins. Simple.
You can tag a king on the other team to steal their crown!
But also be aware, that you will be slowed down after 30 seconds from holding the crown.
Don't worry though, you can pass it to the uncrowned teammates by tagging them.
This gamemode is released early, so expect bugs to happen. It is strongly reccomended to play with full lobby.