Playgroup in the living room

Winter really has overstayed its welcome this year but what can one do when the weather outside is not conducive to taking the little ones out to play or when there isn't much going on in general? I bring the playgroup into the living room and instruct him to participate. It's not exactly on par with Startrek's Holodeck but somehow he is absorbed by it and it keeps him occupied. Thank you technology and how far you have come.