MysterD: I love GTA4 for its story & characters - but yeah, that game's performance on the PC was awful. Ran and performed terribly.
And it was also saddled with the awful GFWL Client too.
RoboPond: GFWL was removed in the latest Steam version it got merged with all addons and had Steamworks added to it, and the multiplayer removed from it, and renamed as GTAIV: Complete Edition.
MysterD: DOOM 2016 is definitely another one. Does anyone even play this for the MP?
DOOM 2016 is awesome. Again, another games I'd love to see its MP split away from it...b/c of size and DRM-FREE purposes for the Single Player.
All of these games w/ MP-style Skirmish modes - TBH, they should have bot support and I should be able to play these offline to battle the game's AI/bots. Think Quake 3: Arena.
RoboPond: I never finished DOOM. It felt more Painkiller to me than Doom so I got bored.
But the thing about these games are if developers are so worried (such as Take-Two were saying when they attempted to remove mods for GTA) then make the MP side separate.
It should really be common sense now days that players on the PC will usually want to mod single player content. And to me that should be embraced, as it shows the love for your game but also the creative side of people. (Some of the mods for GTA are crazy.)
But they should not do a Bethesda and charge people for mods.
At least old editions of GTA4 and EFLC have the XLiveLess Mod, I guess - since those still have all the music stations before the GTA4:CE removal of stations.
GTA4 did get updated on Steam - but, that version lost a lot of its music. Has someone created a mod to allow for us to add more radio stations to GTA4: CE? Or did someone mod the music back in for the new version of GTA4: CE?
I think GTA:O was packaged originally w/ GTA5 to make it look like a "great" deal - as in "Buy GTA5 package, get GTA Online for free!" Sure, most were probably planning to buy GTA5, but this made the deal sound ever better.
Of course, that was before any gamer realized Shark Cards and MTX's could be an issue for some w/ GTAO.