Yeah, old-games.ru noted it too.
There are too many similar games! Winter games from Epyx, Games: Winter Edition from Epyx and Games: Winter Challenge from Accolade... Argh!
Also, old-games.ru already had one of my manuals - and it's definitely from the same source as my pictures. But pictures I found are too blurry, comparing to old-games, and old-games has it "brightened", with removed ghost text and staples signs... I wonder, what _source_ for both?