Two Aliens Adventure Home Two Aliens Adventure 0.0 / 5 ( 0 votes ) Your Rating? Discover Two Aliens Adventure – Play Free Now on GameHard! In "Two Aliens Adventure", you'll be controlling two aliens at once. You'll need to collect all the gems in order for you to get the keys and go on to the next level. It's a very challenging game but fun! Unlock all fifteen levels and finish the game. Have fun playing! Categories in which Two Aliens Adventure is included: Running 1 Player