It is, indeed. Player(s) control the defending force and implement the movement/ resolve combat for the 'artificial attackers' that try to enter the central star zones.
I did not put any basic information onto the postcard about number of players and whether it is solitaire or not... for space reasons. Your comments allow me to revisit the game and see what I can improve - so thank You for Your interest in this little design. If You will have any questions, let me know - I will do my best to answer.