What game series or developers have, in your opinion, fallen off this past generation? This could mean being lower quality, weaker sales, or just in general took a turn you didn't like.

Examples:

• Quality of Fallout Series
  
  • Fallout 3 and New Vegas  --> Fallout 76. People always loved Fallout for the strong multiplayer component right?
• Halo Sales
  • Halo 3 pulling shy of 15 million to Halo 5 pulling around 5 million (~66% decrease in sales).
  • Shooters now selling more than Halo that sure as hell weren't last gen: Splatoon, Uncharted, Destiny (new IP), Battlefield. Does this mean Inklings are more popular than Spartans???
• Bungie's Independence Underwhelms?
  
  • Going from pumping out blockbuster GOTY contenders like Halo 3 to games that aren't really critically acclaimed and sell well, but not exactly blockbuster well. Certainly failed to match the lofty expectations EA and the public set for them when they moved on from Halo.
  • Imagine promising to build an exciting new sci-fi universe and then just... don't. Gottem.
• Mass Effect/Bioware fumbling the bag
  • Going from a critically acclaimed and loved trilogy (minus the ME3 ending grumbles) to widely panned Andromeda.
  • Oregon Trail in space is still a cool idea though.
• Pikmin
  • Until Pikmin 4 releases (it won't) Hey! Pikmin is the torchbearer of the franchise. Don't care what you say. You can rerelease Pikmin 3 as many times as you like, you still won't change my mind. It was released in 2017 too, and should count for the purposes of this thread.
• Pokemon
  
  • Gotta catch 'em all? How about just some of them? Also, they know less moves. And all that power in the Switch? Lets just not use it m'kay.

What else (or who else) has fallen off and why?

Retro, went from a studio that makes great games to a studio that no longer puts out games at all.

God of war, Mario

Retro Logic: Can't make a bad game if you just don't make any games.

At this point I'm pretty sure they think we will just forget about them if they stay silent for long enough.

The one that really hit me was the absence of EA's skate series. That was such a huge part of my gaming on the PS3 and I never got anything to scratch that itch on the PS4 other than a 2D indie game I tried for a bit and was too arcade-y to really act as a replacement. Apparently a new one was announced to be in development, but that'll almost certainly be PS5/XSX exclusive by that point so I think the point of it bein missed on PS4/XBO will still stand.

Agreed. All will be forgiven if they add a VR mode in Skate 4 though.

Ridge Racer has left a hole in my heart. The Vita game was an abomination.

In terms of quality, Pokemon fell hard for me.

Konami has the best dormant IPs.

Chrono Trigger its still going strong after 25 years tho.

Ridge Racer aka that one game that every console launches with but I've never met anyone who plays it. Glad it's usually good. Sorry about the Vita game though.

Rockstar has realized they only need to release one game a generation so fingers crossed for you it's their turn next.