I might be interested in an RP with this group. I like some of the themes you mention...

Fantasy 
Historical Realism (Vikings, Medieval Fantasy, Western) 
Apocalyptic 
Post-Apocalyptic
War/Battle 
Fictional Religion 

Also...

Historical Fiction
Science Fiction
and a lot more.
I have a world I created called [url=https://www.roleplayerguild.com/topics/92917-gunthers-cast-of-hooligans/ooc?page=2#post-5107572]The World of Anhuac[/url] because I couldn't think of anything more creative than that. I have been thinking about putting together an Assassin's Creed -esque RP set in that world. yea, I like a few fan fiction stories.