I think my perfect game would be called something like "Hells Crusader" Or something like that "Pure Evil" Sounds a little better but anyway, It takes a leaf out of the non linear rpg game because there is a whole world out there just for the taking... Or invading.. Or whatever evil deeds you want to perform. Set in the old medieval days, but not on earth of course. Its should be a bit like overlord in the fact that if you decide to build an Evil head quarters, a gang hideout or an evil tower or something like that then you will have many options, like decoration and henchmen. If you have henchmen you will be able dress them however you want. And they can be whatever sort of class you want, Like thuggish gangmembers or acolyte watchers of the tower of darkness..
Combat should be incredibly gory and weapons will come in all shapes and sizes. And depending on what class you are, new abilities will become available to you. Like for instance, The ability to use acrobatics and athletics in combat, Or a deadly swipe of your weapon which can kill a whole group of enemies, Or of course the ability to cast more deadly and gory spells. Like for instance a charged blast of negative energy or a wall of fire.
You should be able to do whatever possible in criminal terms.. for instance you could be the most wanted criminal in the world, infamous for your lack of mercy and uncontrollable rage and hatred for all. It would be a bit like GTA in this respect apart from is someone sees you the watch, or soldiers, or guardsmen wherever you are will be alerted by a lookout or a civillian that isnt running in fear or begging for his life. And then there's more organised crime, Like a thieves guild or a large gang. They will bribe the men to look the other way, or just sneak past unoticed or even kill them quick and quitely.
The story would be about your struggle to be the best of the best in your terms. And when you have achieved this or done something gruesome or even fallen into one of your enemies traps you will be confronted by your nemesis, But your nemesis wont always be the same. Depending on how youve treated people and what your actions are and who they effect. It could be the best bounty hunter in the land, the top man of all the watch or even a certain mercenary or military leader. Thats kind of prototype, planning the story is not going to be so easy.
I'd like to hear what other people think of my idea, whether they like it or not or whether some ideas need changing, Thanks ^^