Spent saturday night playing an epic game of Power Grid! 4 people out bidding each other, stealing routes, and screaming at each other. Brilliant game!
Cosmic Encounter is my favorite. Also like Hive, Carcassonne, Arkham Horror, Agricola, Wrath of Ashardalon, and Carson City to name a few!
Why not play a boardgame this weekend? Tomb: Cryptmaster!