[maximus_asinus]

I don't see how you can even consider option two. I can see thirty different ways locking people out of a quest could be exploited. Option one is possible, I think, but it would be unneeded and messy.

I thought questing with friends was the best part of Graal. Working together to beat certain areas. It is pretty sad that you are trying to eliminate this aspect. These are the things that help build a community.

Now option three appears. Make single player quests but try to integrate a system where you can work together with people to finish quests, try to promote teamwork, not like Stefan's quest, more like a party system.

Alternate you could leave it alone. PKing is a natural part of online gameplay. Don't try to shield people from it, because it'll happen eventually.