Europa Universalis: Rome
"* " Otherwise, make sure the populists don't get control of the senate, do this by making sure that you don't appoint them to any major or minor office, once they get in control, it's almost impossible to get rid of them and they will destroy your empire. If you notice any of your generals loyalty starting to fall, remove them immediately or you're going to have a civil war on your hands every 5 years.