Crossword clues for Sci-fi invaders 3 lettersAnswerClueETSSci-fi invaders: Abbr.ETSSci-fi invadersETSSci-fi invaders, for shortALIENSSci-fi invadersALIENSci-fi invaderMARSInvaders From ___ (1953 sci-fi movie)MARSInvaders From ___ (1953 sci-fi)ALIENSInvaders in some sci-fi moviesASSAULTOFTHEEARTHAlien invaders' intent in many sci-fi films?