not posting anymore on N.O's thread, but what I meant as being impossible is creating water in game (though I have myself come up with a simple method to make it look like you are, but its not the same thing) and not saving simple terrain maps but saving fully designed games in warcraft 3. Even if you save terrain data, which is almost impossible to do accurately if you have a lot of detail or a large area., you simply cannot save information enough to create your own custom games in warcraft 3 mid-match to load them up at a later time. You cannot create or change information like unit names or save your own "trigger like-events" nor create objectives. Someone asked if you cuol for example make your own custom hero wars map during a game to load it up later and host it. I never at all stated that a physics engine is possible.