if u want go to this link and it will help you design your game make a full game design document and the like

http://www.sloperama.com/advice/specs.htm

but no going to 2k australia with your idea. MINE, my 2k. or at least lemme finish my design first

well maybe the nightmare end can be used like a fake one, and once you do some kind of archievement you would be capable to continue after that scene and see the real ending after of somes challenges

well either way i think it still needs more work. If any one has any more ideas feel free to share and ill put them to use.

The manor should contain a realistic ammount of makeshift weapons. I'm always annoyed at kitchens that for some reason contain no knives at all or storages with huge piles of logs around but no axe or saw in sight.

Weapons should also be based arround the area of the house you are exploring.
Living room/lounge - decorative swords
Kitchen - knives/rolling pins
Bedrooms - guns
Yard/shed - large tools like axes
etc

And make the swing speed realistic. I can swing a fire axe about 3 times faster then the guy in condemned even tho he's supposed to be something supernatural and i'm a regular person who doesn't do much physical work.

Explain the fundamental differences to "Alone in the Dark"...

'Should be able to find any weapon made in the past 15 years and a selection of 300 weapons dating back over 130 years.

i think it would be a cool idea if the character keeps thinking he sees glimpses of someone in the house. after a few times he realizes he's not imagining it, and tries to follow the person to ask for help or watever. after tracking him/her down into a room, the door suddenly locks itself and the person distorts until it becomes some badass zombie creature you have to fight. it could be a boss battle or something.