I picked up a copy of Apollo 18 today for a few cents at a thrift store. Without a system or a known working 5.25" drive in my possession I'm not sure if the data is okay. Now what it has is:
1 disk, manual, box with an intact infold, and addendum print-out.

The game isn't on eBay and there are a few out-of-date retail listings scattered across the net. Apparently it's not listed in the rarity guide here and am unaware of other guides, however I've read of those communities existing on here before. But the questions are, is this complete and how significant/rare/valuable is this game.

I'm sure Flack will pop in as apparently this is one of his favorite C64/128 games.