Well, I assumed that this was an appropriate place to present a challenge for people to work on. Portal 2 has the unique situation of being a property that the creators have openly let people use resources from, such as voice clips and textures/models. I thought that it would be cool to see what different people could do with these resources. Clearly no one else is looking at it the same way I am, and I am still in the learning phase in terms of making Roguelikes. It's not that I'm trying to get other people to make it for me, I'm trying to give people a starting place and see where it goes.
I certainly never imagined anything 3D, personally. I was picturing a Roguelike with a tileset made from the Portal resources, and stuff like that. But if no one else thinks that this idea is cool, then I guess that I'll just make something from it when I can.