Yes, the more people play the richer and more detailed it becomes. Remove viewers ran a study, where in blind viewings people were asked to view locations that existed in this physical reality on Earth, or a location that had been strong imagined by one of the viewers. The results was they could accurately view the imagined location, and could not tell that it wasn’t “real”.
There’s a write up of this study, called “The HRVG Tanner Dam Experiment” in the magazine 8 Martinis sadly now ended but run by the famous remote viewer Daz Smith. Here’s a link to the free pdf: page 33 is where it starts.
Another example right from this forum is occultists working with the Daedric Princes from Elder Scrolls.
This comes under the banner of chaos magick. A selection from various video games:
One of these days I want to try this with the dragons and gods from RIFT, myself, I used to love that game and the lore was very rich.
Another idea to create an entire magick system out of the concept, as opposed to say, using E.A.s system to summon these egregores:
Or how about using comic charecters:
General search as there’s more, people don’t do this sooo much, but these entities exist and there’s millions of them. They all exist in the human mind, and the astral is a reflection of the human mind. So these are ALL in the astral somewhere. And sometimes you come across them.
Sometimes it’s not real it’s internal: you just get the imagery used while travelling to bring a certain ambiance to the scene, it’s the closest thing your subconscious knows to communicate what it sees to you in a “well it’s like this” sense.