Probably a great deal more than you think, but for the sake of discussion we'll go with 'not all of them'.Charcharo said:How many newer titles support real high end modding.
And yet, this was true of the past too.Even Witcher 3 did not release with the (promised) high end modding tools. DOOM has no modding, just a cool but low end editor.
Wolfenstein also has no modding support. Partially due to the engine (can be overcome), true.
Don't let your nostalgia blind you to what was and what wasn't. The modding scene of the past had no easier job of modding the games of that era than it does today. Most games, and developers, didn't even have the concept of modding tools.
But nowadays? We have an entire community, numbering (quite likely) in the millions, all of whom share knowledge, tools, and experience to help each other produce better, more complex mods. We have vast networks, services, and systems in place to upload, share, and 'advertise' mods and custom content. Many newer games even include such networks and services within the game client itself. (see: Skyrim, Dota 2, etc, etc)
Meanwhile, in the so called 'golden era of modding', modders were a disparate bunch, numbering barely in the thousands, all of whom were largely left in the dark as to the hows, whats, and whos of their craft. They had to toil and scrounge for the know how and tools (the latter of which were in VERY short supply) to make the content they wanted to make. And, even if they managed to craft a mod, it was very difficult to get it disseminated into the wild. Word of mouth and some luck were all one could hope for.
I get that it's easy to look at the changes within the gaming industry and modern modding scene with a pessimistic tilt. There are negatives, to be sure, but there are a great many positives as well.
What I'm saying is: Modding is not only doing fine, it's flourishing.[footnote]Seriously, just peruse ModDB for a few minutes. Then tell me modding is 'dying'.[/footnote]