Martians sent a representative to the planet, from which signals have long been sent. Apparently the local inhabitants want to find friends by reason, and this is nice. The hero set off and flew many light years before he was in the right place. Expecting to meet a developed civilization, he saw a pretty planet with lush vegetation on platforms and not a single living soul. He decided to go deep and when he passed several miles, he came across a square green creature that turned out to be an aggressive monster. It turns out these insidious monsters are specially lured to the planet everyone to devour them. Help the astronaut in the game Fort of Monsters deal with monsters.