Convert the SU file to a file like games to walk in it witho

[Eng.Basel]

i did a model for a historical place .. and i want to make a file that any one can download it from the internet to see the model and walk in it put without the ability to change anything in it, how i can did that with maintain the texture resolution ?
what i want it to make the model file somthing like the games file , to downlaod it and make a tour in it ?

[Gaieus]

Have look at Walkabout 3D or Simmetry 3D. They both have full working trial versions.