This is a fun PVP mini game that we can not stop playing on my server. 2 opponents face off attempting to knock each other into the water.
I reccomend building a portal behind the spectate area for easy minigame access. The version we play uses colored torches and lanterns mod which adds alot to the vibe, but I have uploaded a no mods required version here. Change out the lighting if you like. I reccomend stocking the chests with a variety of low tier weapons, and coloring the two start platforms for easy team identification. Light the 1 of the 7 torches when you score a point, first to 7 wins.
If not already there, in your server directory create a folder called prefabs
unzip the file to there
run command in creative /prefab load
the file will be under the "server" section
Enjoy

