Sid Meier's Civilization V
Don't ask me how much I've played this game. Oh, the productive things that could've been done with that time...
I love playing video games in my spare time. I’ve easily spent the most time with turn-based strategy and city builders (Civilization, Age of Empires, etc.), but also enjoy roguelike, puzzle, and adventure games.
These are games I've played on Steam during the last couple of weeks.