I just saw this mod, it makes the game much more interesting and seems to be usable in multi-player, its an arena mod that you battle mobs that spawn in waves, you earn rewards from it, you can work as a team or on your own. You earn random rewards, such as string, and I believe they get better as you survive more rounds, you get given armour & weapons at the start if depending on what 'class' choose, you don't however keep the items you earn in game, but you do keep the rewards. It appears fully customisable and simple to use. I reccomend you watch the first video on its page, which you can access if you
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