Played this on Apple IIc! I think graphically, that was one of the worst versions, but for some reason still loved this game. As a kid, didn't get very far until I dedicated myself to the task of breaking the (relatively simple) code used for the alien language bits. Felt like an accomplishment and had a lot of fun finishing the game after that. No idea if this holds up today, but for its time it was unparalleled in terms of what it offered for exploration. Yes, Elite was a thing, but Echelon wasn't procedurally generated. You were exploring a crafted experience with real puzzles to decipher and unlock. It was a great experience in its time.