estate sale vintage tabletop gaming history - made here in canada by affiliate enterprises of montreal not really anti-gravity - it's far too old for that (you'll have to wait a few years yet for real anti-gravity) that said, it does really move a ball uphill, against our expectations - and it affords the opportunity to explain some pretty neat physics to your kids, if you know enough to do that (i certainly don't - you'd have to wait a few years on me if you want that explanation) no date stamp on the box or game, and unable to find anything more about it or affiliated online judging by the build materials, the box graphics, the price written on the box (a whopping $4), the marketing blurb on the front (sir isaac - grin), and the cardboard itself, i'm guessing that this is from the late 1970's through to the 1980's and that it has been through at least one garage sale the end bumper block appears to be cracking, so it probably will not stand up to much rough game play (could be glued) (ball is old and may not be original - some bounce does add a bit of extra challenge, as the ball can shift to another slot) ** if anyone out there remembers having played this specific game, please comment and confirm years if possible - hopefully i wasn't too far off with that date info ** *** thank you, mark, for sharing your experience - 1985 - called "shoot the moon" - had a steel ball ***