I played this game in a discord chat! As its very obvious lots of people like murder on mcpz. I haven't seen anyone do this on minecraft yet so here's my idea! 
(Please note I am not that good with english grammar)
Everyone is a criminal ,and will be against each other, they each will sit at a table together and you're all trapped in a room.
You are trapped by a monster in the room. You will have to SACRIFICE one by one but you each will vote and the person with my most votes will die.
Until it comes to the final 2 the monster will choose randomly for one person to win, and set you free.
Ways of Winning:
Just don't DIE
Ways you can WIN:
Alliances
Persuading others
And much more things you should figure out >
Extra Perks:
One randomly chosen player will get a chance to have a saboteur power, one player will have to do a quest for an example having 2 people fight (but they cant let ANYONE know its them after the saboteur does those quests they will get safety for 2 trials and put 1 person automatically to death, But after the saboteur's safety ends everyone will vote who they think the saboteur is if ANYONE is right the saboteur will die)
Maps:
There will only be one map with a round table in a dark basement but you cant ever see the monster you can explore but there's only old items that are dusty and useless.
Although this isn't a really good idea i think it would be a unique mini game!
Thank you for reading this ,and I hope you will consider to put this in!
FAQ: (For questions below that I'll edit onto this thread)

(Please note I am not that good with english grammar)
Everyone is a criminal ,and will be against each other, they each will sit at a table together and you're all trapped in a room.
You are trapped by a monster in the room. You will have to SACRIFICE one by one but you each will vote and the person with my most votes will die.
Ways of Winning:
Just don't DIE
Ways you can WIN:
Alliances
Persuading others
And much more things you should figure out >

Extra Perks:
One randomly chosen player will get a chance to have a saboteur power, one player will have to do a quest for an example having 2 people fight (but they cant let ANYONE know its them after the saboteur does those quests they will get safety for 2 trials and put 1 person automatically to death, But after the saboteur's safety ends everyone will vote who they think the saboteur is if ANYONE is right the saboteur will die)
Maps:
There will only be one map with a round table in a dark basement but you cant ever see the monster you can explore but there's only old items that are dusty and useless.
Although this isn't a really good idea i think it would be a unique mini game!
Thank you for reading this ,and I hope you will consider to put this in!
FAQ: (For questions below that I'll edit onto this thread)