I've got a great idea for a new game!

[Googolplex]

I don't think that this monsters fitting into that game's place. They don't even look scary. Instead they are kitschy and funny like the monsters from Outlast and most other games. You're talking about "enemies" and they look evil like typical from every other horror media. But this is not a good idea for a really good (horror) game.

At first you need a good story that is about something like god, universe, life, love, nature and/or mind. And what let you esteem the valuable things.

So, every monster should make a sense of the story and when your game is playing in egypt you need something like this:








I think such a game would be a great idea, but the only thing you mentioned is the location. It's not even worth to call it an "idea". As I said, you need a story.