For my college project (2003?) I modded UT:GOTY and its map creator tool (UnrealEd) to work as an architects design tool when pretty much everyone was using CAD tools.
I was able to provide to an architect a tool that was very easy to use (UnrealEd was pretty cool), to create structures and allowed real time 3D visits of them, modify the textures and modify the sounds.
Funny thing, I didn't have the time to remove/hide a certain feature of the game: dying. So if a visitor of a virtual building dropped from more than a meter, the game would play the hurting animation or die if it wasn't in god mode.
I was able to provide to an architect a tool that was very easy to use (UnrealEd was pretty cool), to create structures and allowed real time 3D visits of them, modify the textures and modify the sounds.
Funny thing, I didn't have the time to remove/hide a certain feature of the game: dying. So if a visitor of a virtual building dropped from more than a meter, the game would play the hurting animation or die if it wasn't in god mode.