The game itself runs smooth. I was able to play it without any crash for 10h. However, the game mechanics no longer seems to work. I used to get 500k citizens easily. Without cheat codes. Today the growth always stops at 30-35k citizens, no matter what I am doing, Also the traffic problems does not disappear when building new streets or public transportation. I have to tear down old streets so that the traffic problems disapper. I have looked everywhere for bugfixes or guidelines to solve it. Nothing works. Does anyone suffer the same problems? Is this only a problem of the GOG version? Does anyone have a bug fix