The Galaxy Cat appears to have lived in Estorra for some time. It has been living near the blacksmith and for sale house as it is most seen near that area.
Right after the launch of Dreams of Estorra, it ran into Aphmau. The two became close as Aphmau checks up on it from time to time, bringing it fish when ever he/she visits.
In "Dreams of Estorra", the Galaxy Cat greeted Aphmau and Rune, with the former bestowing it a fish.
Later, it decided to join Aphmau when she was on a quest to infiltrate the Rogue's Charter. It then showed its ability to transform into things like a scrunchie.
Galaxy Cat is a small feline. It has dark blue galaxy-like coat, deep purple eyes and magenta center. The color of the inside of its ears are magenta and a purple nose. The most notable trait of this cat is the ring of cloud surrounding it near the neck.
This cat is quite friendly towards Aphmau and her friends, greeting the trio when they arrived near the blacksmith.