@Flashman I know of an amateur made game that you can print out called Orbital Battle by a guy named Mike Fisher. You download it from his own website for free.
http://www.cke1st.com/m_games1.htm
It’s one of the space games. His site has over 20 home made strategy games.
It is not an exact gameplay copy of A&A as it uses a hex map and the defending units are only forced to retreat away from an attacker if the dice roll doesn’t roll high enough.
It is played on a solar system map 21 hexes across that has 8 planets on it that move on orbital paths each turn. Also, each planet has it’s own small ground map only 7 hexes across.