I have an idea for a video game that has been bugging me all day. That there is a zombie invasion based in Japan and there is a Shogun that is the only one who can save the entire planet. The way the infection started can be how ever you want it to be. The setting is in Japan(of course) and there will be like side quests and it will be free roam. There will be some mutant zombies like the screamer and a samuria. Through the game play you can earn new skills and mods to your swords, Armor, and guns. Sense I love free roam games you can explore the city and find eastereggs and build a zombie-proof base.
I am still having trouble to think if it is a FPS or not. (Probably Both)
I hope you guys can make this happen.