If you like sci-fi and are looking for a cooperative game, then I highly recommend the Battlestar Galactica board game. You don't need to have ever watched the show, though the game captures the feel of the show perfectly. The premise is that a race of robots known as Cylons have destroyed most human colonies and the remaining survivors are trying to flee them and get to somewhere safe. The Cylons constantly chase the humans. So the players play various human characters in a game in a cooperative game in which there are so many ways for humans to lose - run out of food, run out of water, population of humanity diminished too much, morale fell too low. The players vie for various roles that give them abilities to combat the cylons - like the president who can give speeches to boost morale among other things, and the military commander that decides where the ships are heading next to escape the cylon. And the various characters you pick (there's over 20 of them) have different abilities and weaknesses. That alone would make it an interesting Pandemic-like game. But the big twist is that the Cylons can look and act like humans - and some don't even know they are Cylons. So at the start of the game (assuming five players), anywhere from zero to two players know they are playing as Cylons. They find subtle ways to sabotage humanity and have to make sure that they don't get outed (and killed by the other humans). And then at the halfway mark of the game, there is a chance that an additional player learns that he/she was a Cylon all along (every game has at least 1 Cylon guaranteed). Next thing you know you realize that the military commander has been leading you to the least optimal places all along because he/she was a Cylon. Or that the goddam president has been subtly hurting humanity more than he/she has been helping it. The Cylon players also often frame innocent players which leads to all kinds of chaos.
BSG solves one of the biggest problems in cooperative games like Pandemic. Often in games like that there's always one player on the table who just knows what the most optimal move is at any time. So players either follow what that player says, which isn't fun, or they play sub-optimally. With BSG, you literally can't trust what anyone else says to do because they could be a Cylon. Like you still must work together because the board game itself can so easily kill humanity, but you have to act on your own and have a healthy distrust for what anyone else is doing. It's basically mafia meets pandemic. Since in any one game, between 1-2 players WILL be Cylons, there is an incredible amount of tension throughout.