Okay. I find this 5.99 2600 lot on eBay. 12 games, all I need. One listed was "Swordquest"
I e-mailed the seller this:
"Hi. What Swordquest is this?"
He replied:
"atari-swordquest"
I replied:
"What I meant was "Is this Swordquest Earthworld, Fireworld, or Waterworld?""
He replied:
"No. Atari game only."
Not that I was expecting a Waterworld, but I needed Earthworld, and not Fireworld.