Some games stick in your mind like a popcorn kernel, but a welcome popcorn kernel. A popcorn kernel that sends you on a quest purchasing popcorn wherever you can find it in the hope of getting another kernel in your pearly whites.
Maybe it's because some games do something unique and the genre evolves in a different direction. Maybe the developer didn't find success with that title and moved on. Or maybe the wonderful world of copyright has your favorite in a vice grip.
Regardless, what game sticks in your head? Routinely pops up and seemingly just won't leave?
I tend to suddenly remember Metal Gear Solid V and how fun it was to capture stuff on the battlefield and return it to my own base to use against the enemies. As occasional as the nemesis system pops into my mind from Shadow of Mordor, the capturing and build-up of forces in MGSV will always linger in my brain folds.