FOSS gamedev and creative worlds

I'm working on a server were the players hunter each other like in the Hunger Games. I'm making the walls for the end of the area and Im wondering, can I make the walls one block or should I make them high so no one can cross them? I'm not sure if I can trust people with one block or not. Any suggestions?

You could easily make a huge wall with worldedit. If you use worldedit, you could also make the wall out of default:cloud, which is indestructible.

How hard is world edit? Im currently using glass for the walls.

This is more of a map. I havent made a server for it yet.

ooh ok. If you want to play you can signup!

Do you have any open slots?

A lot. Just signup by posting in the topic.

Ok man, i think i will