This is what I need : I am currently creating a huge RPG Server and one of its main features should be that you can't jump. Don't.even ask me why I don't want people to jump. This has just one reason : It makes things easier for our server. I can only explain this in one way : I am making a "Tibia" - Style RPG. I am currently rebuilding lots of cities from it. I need an Anti-Jumping Plugin and I hope someone can do that. If this makes things easier for you : You can actually use a Potion Effect to make it impossible to Jump. The Potion Effect is : "Jump Boost with Potency - (Negative) 127" If you could make this Potion Effect permanent, that would be great! Thanks anyways! cRy.