J.U.L.I.A. is an adventure game about a 35 year old astrobiologist, Rachel Manners. Years ago, telescope Chandra 17 located a solar system very similar to our own, and an artificial signal was picked up from deep within it. A massive space probe was constructed with the goal of meeting and studying extraterrestrial sentient life-forms, and an elite group of scientists was chosen to embark. However, something seems to have gone wrong as Rachel wakes up from a cryogenic sleep, and finds herself alone, orbiting an unknown planet. The rest of the crew is dead, and the probe has been damaged in an impact with a meteoroid swarm. Together with J.U.L.I.A., the space probe’s artificial intelligence, and Mobot, a reconnaissance robot, she starts to explore the solar system.
Gameplay consists of exploring the probe and travelling to six planets to find out what happened to the crew and why the mission failed. Players have to solve puzzles, repair key items and communicate with the artificial intelligence of the ship to progress.
After the credits rolled to the very end, developers unveil the fate of XIRs (super-weapon in form of cyber-monster fought in the game): "CBE wants to confirm that no XIRs were harmed during the game development process... We did kill them afterwards though."