I was looking at "Becoming a Damsel," which is under the Switcheroo section of the list and I wanted to try that with at least one other person. It was basically a story of a group of friends trying out a system game (similar to dungeons and dragons, etc.) or an online RPG (or maybe like Skyrim) when suddenly something mysteriously pulls them straight into the game. As they enter the living, breathing world, they each find themselves separated from each other and in very different forms. The original main character was a guy in the real world, but in the game world, he found himself to be a female elf. Furthermore, this elven woman appeared in a snowy forest nearby an imminent clash between a human convoy and orcish hunters (I think; you'd have to read it to be sure). The other characters would have either similar or completely different transformations (not exclusive to only gender bending).
I'd like to resurrect it to be a small group game. If it grows, then I might ask for more players to continue the story, to make it more interesting. But for now only 2-3 players including myself.