The game is about exploring the environment, fighting against enemies, interacting with non-player characters and saving the world. After finding his sister, Ethan leaves the space station. Ethan (the protagonist) kills the creatures and recurring people. The protagonist encounters a Guardian named as Leo, but they are meeting is interrupted by a strange creature that paralyzes the Guardian Leo. The protagonist and his sister are diverted from the main route, separates from each other. Suddenly a mysterious meteor appears and almost demolish the entire fleet. In the story, the protagonist and his sister are celebrating the 100th anniversary of the Alliance Space Fleet on the space station. It has both Online Multiplayer and Single-player Story modes and cast the player in the role of the protagonist named as Ethan Waber.
It is the similar game to the PSO (Phantasy Star Online), but takes place in different location and time, and introduces lots of new features. Phantasy Star Universe is an Action Role-playing and Single-player video game created by Sonic Team and published by Sega.
