I think there’s something like 17 versions of “Pandemic” out there. It’s a very popular game. I never played it, but I’ve played “Forbidden Island” by the same author which is a similar game. It’s co-operative, everyone works together to stop global pandemics by traveling around the world, building hospitals, and researching vaccines.
The latest versions to come out are a series called “Pandemic: Legacy” which are a fascinating new idea in board games (and great way to get peoples money). Every time you play the game, the rules change permanently. There are cards that are added or removed, stickers put into the instruction manual, and little boxes with new pieces to add. And the rules are different depending on how each game turns out. After ten games the rules stop changing and you end up with a unique board game that no one else has. Then they came out with three sequels to “Pandemic: Legacy” that tell an ongoing story about the pandemic so every year you have to buy the next game.