Eagle-Gryphon Games on Mars: Alien Invasion is an exciting and highly-anticipated expansion to the popular on Mars board game designed by Vital Lacerda. Originally intended to be called "Surviving Mars, " the expansion's title was changed to "On Mars: Alien Invasion" to better align with its thematic content. The expansion adds a rich narrative element to the game with a story composed of four chapters written by Nathan Morse. This expansion takes the on Mars gameplay to the next level by introducing four unique and fresh ways to expand upon the base game. Players can expect a variety of gaming experiences, including one-versus-many, full cooperation and even solo play depending on the specific chapter they choose to engage with. Each chapter offers an entirely different and replayable approach to establishing colonies on Mars.