A first-person action horror game called Darkness in Spaceship takes place in a futuristic space station. The story is set in a future in which humanity only exists in massive spaceships because Earth has become uninhabitable and other planets are unsuitable for life. The protagonist is a special agent who resides in a spacecraft named Light. Enemies attack their ship one day. Robot soldiers are sent by enemies after they first bring monsters inside the ship. To save his people, the hero must vanquish his enemies.