I'll argue with you on the Halo point. Halo 3 was released in 2007 and continually got updates and dlc until reach came out in 2010. Matter of fact, bungie was still doing special Holiday playlists and double exp weekends for years. Also, 343i released the master chief collection based off of halo 2 but also had all the halo games combined so I guess you could call that new content post year one. I actually fired up my 360 the other day and people are still playing halo 3. Almost 10 years later