Pandemic Legacy (Z-Man Games)

Over the past few years, the cooperative game Pandemic and its expansions have shown the gaming world that board games can be fun and brutally hard. In the series, players are scientists, virologists, and first responders combating a global outbreak of diseases. Set very much in the reality (the game map is a map of Earth), there's a tense struggle to keep diseases from spreading country to country as outbreaks happen mid-game. In Pandemic Legacy, the general mechanics of the game stay the same—but each decision you make in-game effects your next playthrough. The story of the game takes place over a year, and each playthrough is a month in that year. What makes Pandemic Legacy so unique is the "Legacy Deck" of cards included, which will drastically change the game board and the rule book. You'll be putting stickers on your board and in the rulebook that will change the nature of the game, and last through all subsequent playthroughs. This is one of the only board games in the world (along with its counterpart, Risk Legacy) that contains spoilers.