LASER TAG LASER TAG LASER TAG LASER TAG
Alternatively, if you have some money to spend, buy some cheap airsoft guns for everybody and a bucket of those plastic BBs. Shoot each other all day. Make sure you also have safety glasses for everybody and a box of bandaids. It sounds like something only a meathead would enjoy, or a sado-masochist, but it is one of the funnest things I have ever done. A buddy of mine has this quasi-junkyard on part of his family's property, mostly just a ton of junk tires, and we probably had 3 or 4 hours of incredible fun hunting each other and coming up with new games. Paintball can also work but I like the airsoft guns.
Or, you know, there's Nilla's idea.
Edit: What are your friends like? Are they in to more subdued activities? I know of a place in Spokane that teaches you how to blow glass and lets you do it right then and there, kind of like a Pottery Barn but 100x cooler. It got so popular they had to move in to a bigger building; I've always wanted to try it someday.