I thought up a method to dream share with large quantities of people. I saw the oneneirnaught or whatever experiment and I have a different method that could work. Instead of picking a meeting place like the moon you pick a person the "host" to go to their dreamscape, their inner world. Say for example you wanted to play hunger games with about 25 people you pick one who is experienced enough to make the hunger games setting. Dreamers would try to teleport not to the hunger games arena but the person that is "hosting" it instead. The host would be experienced enough to see if the dream is about to collapse and know how and when to stop it from happening. For example, umm Dreamer (the actual person) would know how to stay with a dream and make the dreamscapes. If the host is not able to get lucid that night you would have a problem right? no, pick a second or third host to be essentially a backup if the first one fails. One could host just a free roam type of dream and have people join it. You just have to get to the person instead of the place. If it works you could organize games, meetings, explorations, and just messing around. This is just a thought and nothing that should be tested unless you want...