I got to looking up game sales for several game series. I saw a disturbing theme. Most series seem to be on a decline. I mostly compared first week sales for games in certain series, but also used other methods.
Multipltform games: Call of Duty is down. Assassins Creed down. Titanfall... fallen. Final Fantasy 15 in Japan, has only sold less than half of what 13 did. We will see about the rest of the world.
Xbox: Forza down. Halo down. Gears of War: grinding down.
Playstation: Gran Turismo down. God of War down. LittleBigPlanet: Littler! The only improvement I saw is Uncharted slightly up.
Nintendo: NSMB U is way down from NSMB Wii. Golden Sun down. Smash Bros.: Smashed. Well, compared to the last Wii version. Pokémon is slightly up from the last 3DS game, but that may be because of the Pokémon Go craze of summer.
So what is going on?
