I would like to introduce my 2 sons to LAN games. I have a bunch from over the years that are LAN games, but it is always capture the flag or kill each other. I would like to find a few cool coop games that we can play locally. I haven't found any in the forums or via the App Store so I thought maybe someone here has found something fun. We are running a couple of iMacs and a MacBook Pro. Any suggestions would be welcome.