You wake up in a strange place... No memories of anything, not even your real name. You are alone, only a blue sky and a green ground around. You wait, and wait, hoping someone will come and explain like in the movies. Maybe tell you you're trapped, but you can walk anywhere you want. The ground is flat. The sky never cries.

And then. You start wishing. For food, water, shelter. It all appears, everything you want becomes a reality. However, it is synthetic. If you wish for people, they aren't really PEOPLE. No emotions, no needs or wants... It becomes creepy, even boring. Maybe you even start becoming delusional, until the loneliness nearly consumes you. Until... You meet the others. The others who have been here. For days, weeks... Maybe even years?

But it's not perfect. It may be everything you wish, though it doesn't feel REAL. Additionally, strange things begin to happen. Why is that type of food there? You didn't wish for it. Why are some of your desires not being granted? Why... Why are those synthetic humans turning into MONSTERS!? 
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And that's the basic plot! It's supposed to be open-ended, room for several plot twists, things of that nature. It's ALSO a good plot for those who wish to join later on, since they'll just join the group. It might be a bit difficult to keep god-modding away, but as GM I will do my best to keep the players from that.

I hope you like the idea! If you'd like to suggest stuff or ask for more information, you are very welcome to.