@Graham_LRR To be fair, Microsoft only owns small, unnoticable franchises like Halo, Minecraft, Fallout, Elder Scrolls, Forza, Doom, Wolfenstein and Gears of War.
Also some that most definitely are just deadweight and could never become popular again if treated well, like Banjo-Kazooie, Conker, Commander Keen, Battletoads, Zoo Tycoon, Project Gotham Racing and Perfect Dark.