do you think it is possible that there are differences in the entire universe. why does it all have to be the same?
If the laws of physics are different in various locations throughout the universe, what happens when your spaceship enters these areas? Everything would function differently, therefore making it impossible to escape.
It's actually amazing how precise everything in the universe MUST be in order for it to even exist. For example, if the charge of the electron was slightly different, then the formations of atoms would not have been possible, then the stars would not have been possible. There is a strict set of laws that make up the universe that everything must follow, this is a fact. This is not dungeons and dragons, you have made the mistake of not understanding the basic fundamentals of the universe. There are no moons made of cheese, no lunarium.
The first stars were formed by hydrogen and helium atoms gathering together, when these eventually died, the resulting fragments from the dying stars formed new elements which in turn formed the second generation stars. The death of these stars began to form the third generation stars and planets (i.e. sun and earth). We know ALL the elements that are possible in the universe already, there are no bizarre galaxies with Lunarium, Star Trek is not a reality. If there were completely different elements and laws of physics throughout the universe, then it would not be able to exist.
If deep space travel is achieved to visit other intelligent life, it will not be with rocket propelled space ships like you have described, it is just not possible, it will be through the use of wormholes (folding time and space).
These are all interesting topics, and there are alot of people on this board with alot of knowledge. You should put aside this absurd game of yours and maybe post seriously, you would be spending your time wisely by learning rather than spewing crap.