Going to be honest here, of these 20 examples, I think I could only consider maybe two "out-of-the-box" at best. That phrase, ironically, makes me think of a specific type of RP set-up; that being, anything that isn't a traditional setup.

When I think out-of-the-box, I think the following concepts: Not having a single set character, everyone controlling the same guy, making your character up as you go along, etc.

Basically, anything that deviates from the "Here is my character sheet" style of RPing we're all used to in both forum and tabletop-style RP. That, to me, would be considered "out-of-the-box."

Everything else proposed just has to do with the narrative flow of the RP, and are often just more tools to explore within that boundary of traditional character sheet-based RPing. Sure, they're not always explored fully or utilized as well as they could, but none of these ideas constitute a roleplay all their own. Most of what I've read here just comes down to "how much planning do you want vs. how much improvisation" and "if we improvise, in what manner do we improvise?"

What I'm saying is that [url=https://www.roleplayerguild.com/topics/182175-the-adventures-of-caleb-crowsnest/ic]this[/url] is a lot more out-of-the-box to me than the stuff which is proposed in this thread.