[Ulrike]

I read all the times you said random ^^. And as a person who's had some (not extensive) coding experience, I'm telling you that there is no "true" random. The random numbers generated are seeded based on some factors which are unknown to me.

While you're correct in that given the current coding languages there is no way of writing/using a true random number algorithm, Fiesta (and any other videogames) is probably using a library PNRG, which generates enough randomness (patterns will emerge after loops in the tens of thousands).