We live in an older rental home, and when it rains a lot we thankfully don't get totally flooded but there is enough seepage that comes in that make it feel more cold and damp than it should be even after the rains finally stop. Which, to my way of thinking the rains could stop any time now. It does however mean that if the basement area is to remain "livable" for those who spend a great deal of time down there, it's time to start looking at dehumidifiers again. Two years ago we were lucky enough to have a friend give us one. It has passed into that great dehumidifier heaven, and while it was much appreciated and saved us money at the time, some of the newer ones out there are just a bit quieter and more energy efficient.
I could of course just let the basement dwellers re-take over other portions of the house, but I think I'd rather keep them there, where the sounds of that CombatArms game is muffled from the basement to the second floor of the house.