You could have a non-missionary religion (like Judaism). You could have a missionary-religion that considers humans unsuitable for conversion. You could have a missionary-religion that puts some kind of restriction that says they have to wait for some trigger event before contacting humans.
As for God why do you assume God is inside this universe? God could be causing the universe. (Like God would be the computer and the program, and we the results of running the program.)
You could have a non-missionary religion (like Judaism). You could have a missionary-religion that considers humans unsuitable for conversion. You could have a missionary-religion that puts some kind of restriction that says they have to wait for some trigger event before contacting humans.
As for God why do you assume God is inside this universe? God could be causing the universe. (Like God would be the computer and the program, and we the results of running the program.)