Never had any problems with the first or second game, now all of a sudden the game starts crashing randomly. I've started new parks and a few times it would crash but I could work around it, for example I was expanding my aviary with pterasaurs already in it, which caused the game to crash, so I loaded an earlier save and expanded the aviary before releasing the pterasaurs, which worked. But after a while, it just crashes for no reason, I released a T. Rex and after about 3-4 minutes the game crashed, I saved closer to the time of the crash but that meant the game would crash immediately upon loading. I've never used mods for the second game, my drivers are up to date, I meet the minimum requirements (as I did before and after the crashes started) and I verified the game files/reinstalled.