Risk Legacy

The 2011 original from Rob Daviau and Chris Dupuis still has the most gleeful sense of destruction. You choose one of your faction's two powers, stick it onto the faction card, and tear the other up and throw it away. Winners sign the board and found cities, scars stay on the map for good, and sealed packets wait in the box for conditions to be met during the 15-game campaign. It is competitive Risk at heart, so it suits a fixed group that enjoys grudges more than puzzles. The board can keep changing after game 15, and you finish with a version of Risk nobody else owns, though replay value fades once every packet is open.