Us Against Aliens is a survival first / third person shooter game on a spaceship that flies towards Earth. You are the only one left from the crew on this ship and something is constantly happening on it, the oxygen supply system will break down, the engine will overheat, the electricity will turn off, and much more. And you need to solve these problems by constantly moving to the place of failure. In this case, the main danger is aliens who constantly penetrate the spaceship and they hunt you all the time. But having reached the weapon room, you can always choose your own weapon and replenish your ammunition.In multiplayer, you can choose the side of the conflict. Playing as people, you can use various ranged weapons and also use first-aid kits. Playing as aliens, you will mainly fight in close combat. But you have invisible camouflage. You can also spit spores that cling to a person's head, depriving him of the ability to aim normally and after a while, the spore will kill its wearer.