Place a Knockout Manager, Zone, Counter and an End Game Device.
Player Enters Zone > Activate Knockout Manager
Target Knocked Out > Increment Counter
Target Value Reached > End Game
Welcome to the forums! @Yezzir!
Don’t forget to check out the new-user-must-read and forum-tips tag.
The Community Made Guides category is also very useful, posts there give you a gist of the rules and mechanics in Gimkit Creative.
While you’re at it, I suggest also reading the
If you need help with anything, just ask!
After all, this is a Community Forum 
!