Afm and mm are both awesome and my favorite pins to play . Not super deep but deep enough and very hard to master if set up correctly. Both have easy objectives and both have not so easy objectives. Afm has the better code imo over mm but both are very similar. Afm is faster , has more flow and is also more difficult imo. I have yet to beat mars and rule the universe after tons of games on it. I think alien will be a cool game but im gonna wait a bit while things get worked out and it becones a proven title. It has potential but still needs alot of things fixed imo. Put some time on afm and mm and i think u will see y they are so popular.