PC gaming after 2013... By that point, most of my favourite PC games of all time had been released in one way or another (Age of Empires II, Skyrim, Unreal Tournament 2003/4, GTA Vice City...). The best games post 2013 I can think of are Doom, the Danganronpa games and Cuphead. I need to play more modern PC games.
AoE II HD was actually released during April 2013, so you can still technically add that to the list
There are all sorts out there to play on PC. I'm personally looking forward to Wolcen:
Since Blizzard clearly doesn't care about Diablo anymore, I can see Wolcen taking the top spot for being an ARPG once it completes it's early access phase.