If you have played XCOM, either from 1980s or just the 2000s editions, this is a nice twist that requires many people to play. There is a solo option but I wouldn't put the fate of the world in my ability to play this game. I would recommend this game for group or family play as each person will have a job to do and the turn starts crazy fast when the aliens attack, but you can respond on the second half to the conflict.