I have been planning a computer build for nearly two years. One that can play the following:
Fallout 4
Hearts of Iron 4 - all that AI management of armies and stuff requires a huge processor.
Battlefield One
Titanic: Honor and Glory - if it ever gets finished (demo 3 is murdering my dual core processor on the Seven machine, so the full game will definitely require a hefty machine. Though the 2 gb AMD HD7770 video card is a pain for old games, I am glad I have it because those Demos wouldn't start if I didn't.)
AOE IV - just added to the list
Of course budget constraints have kept it shelved.
I just built (Frankenstiened some pieces from my wife's old computer) a rig to play BF1 on a tight budget. An X4 860k (~$70), 8 gig RAM and a 750ti and I can play lag free on medium/low graphics. It also plays HOI4 just fine, it does slow down in the late game, but it's not unreasonable.