I've been wondering for an original idea for a server. I came with this just a few hours ago while playing with the new Hook-Gun mod.
Basic concept? Parkour race from start to finish, dodging any obstacles you may encounter.
Catches are as follows:
You cannot directly kill players. You could derail them in some way, but you should be more focused on winning.
You will be able to have multiple tools to get you through the course, and every course should be able to be completed with any tools given.
No vehicles.
Courses should have lots of traps and other obstacles.
Anyway, I made this topic solely for anyone who would either be interested in playing a game like this, or even helping create a gamemode like this.
So. /Discuss.