This minigame i made because i havent done maps in a while.
It doesnt require mods its all command blocks.

About:
There are 4 teams.Blue,black,red and green.
each team has to race eachother to the top(put block to get on top) and kill the monster.
At spawn u choose your team.
Obsidian=Monster
Red=Red wool
Blue=blue wool
Black=black wool
Green=green wool

Rules:
Maximum 1 person per team.
dont kill eachother except the monster.
dont spawn items or go into creative.
Atleast 3 players playing(1 monster and 2 teams.
dont time set 0 because thats will be already provided by machines.