At some point, the Space Opera roleplaying game set got a minor re-do of the cover graphics. Both box sets have a black background, with different variations of the same cover art.
The first is by by Gene Day. The later set has art redone by Robert Charrette. I don’t see any difference in the contents. The Robert Charrette set is significantly more common. I probably see them on a 4:1 ratio.
I enjoy comparing the two to see the minor differences, switched ships and aliens.
But the big difference is that the woman got sent back to her room by Dad: “Young Lady! You are NOT going out like that!”
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The Other Side blog: Review: Space Opera, 2nd Edition (1982)