Minecraft - 3000+ hours
Skyrim - 1000+ hours
Metal Gear Solid V - 800 hours (50:50 offline/online)
Darkest Dungeon - 400 hours
Apex Legends - 5000 hours (50:50 controller/MnK)
Souls series - 600 hours

I'll be playing less games going forward because I've accepted that it's not healthy to invest such a large portion of my waking hours into something that is little more than entertainment :)