Sid Meier's Civilization V

Civilization V is the ultimate time-sink for anyone who has ever thought, 'I could run this planet better.' You take a ragtag group of settlers from the Stone Age and drag them kicking and screaming into the future, managing everything from city planning and scientific breakthroughs to aggressive diplomacy and full-scale warfare. The game swaps out clunky grids for a slick hexagonal map and a one-unit-per-tile system that forces you to actually think about your military positioning. Whether you are aiming for a cultural masterpiece or a nuclear-fueled conquest, it is a masterclass in the 'just one more turn' addiction.