Games reached their peak of complexity about 25 years ago ? What utter tosh.
Lets look at a 1991 PC spec. An ultra-high-end system would be a 80486-based PC running at 25MHz with 4G of RAM and VGA graphics running at 1024x768 and would have cost US$ 4,500 in 1991 and would have been way way out of the reach of most people. So there would have been zero games written to take advantage of that level of hardware. Most people would be running a 12MHz 80286 with 2G of RAM with virtually no graphics capabilities - still a hefty US$ 1,500. CPUs are now at least x1000 quicker with at least 2x cores and graphics GPUs literally millions of times quicker. Are you seriously suggesting that today's games are no more complex ?
What world do you live in ?
If you are correct then games software must be the only genre of software that has not got more complex in the past 25 years - and I don't believe that for 1 second.
Sorry, you must have misunderstood what I meant. I wasn't talking about the programming, but the operating.
Most PC games from 25 years ago will have needlessly complicated with unintuitive menus and controls and a giant manual, which you needed at your side. (Atleast the ones I played!)
These days, controls generally conform to a standard (WASD, gamepad, ect), menus are usually clean and easy to understand, and manuals aren't really needed.
Basically, you can pick up and play a game without reading a manual or looking at the options for the controls these days.
Sure, back then we had some super simple games too.