gorfulator Posted October 23, 2019 Share Posted October 23, 2019 My friend worked for Imagic in the early 80's. He was getting rid of some old belongings and showed me an untitled vic 20 prototype cart. He said he worked on moonsweeper for the commodore, I always figure c64, but this is obviously a vic-20 cart. I wish I could get access to a vic 20 and see if its actually moonsweeper. Anyone know a good place in SF Bay Area to test old cartridges? Quote Link to comment https://forums.atariage.com/topic/297597-might-have-found-an-unreleased-prototype-of-moonsweeper-for-vic-20/ Share on other sites More sharing options...
+Psionic Posted October 24, 2019 Share Posted October 24, 2019 Who was your friend? Did he work on any other games? Nice find. I suspect this is probably very similar to the 2600 version but hopefully you can get your hands on a VIC so we can see for sure. In the meantime, be careful with that exposed EPROM window and don't expose it to any UV light. I also would suggest removing it from the socket and dumping the contents to create a backup sooner rather than later. This is probably the only known copy of the game at this point, so it'd be a shame if it were lost. 1 1 Quote Link to comment https://forums.atariage.com/topic/297597-might-have-found-an-unreleased-prototype-of-moonsweeper-for-vic-20/#findComment-4377312 Share on other sites More sharing options...
brain Posted October 24, 2019 Share Posted October 24, 2019 If you dump. we can test in VICE. Quote Link to comment https://forums.atariage.com/topic/297597-might-have-found-an-unreleased-prototype-of-moonsweeper-for-vic-20/#findComment-4377317 Share on other sites More sharing options...
gorfulator Posted October 24, 2019 Author Share Posted October 24, 2019 Cool! will keep you guys posted... Quote Link to comment https://forums.atariage.com/topic/297597-might-have-found-an-unreleased-prototype-of-moonsweeper-for-vic-20/#findComment-4377328 Share on other sites More sharing options...
Mayhem Posted October 24, 2019 Share Posted October 24, 2019 Yes, cover up that EPROM window! If need be, I can dump it although I live in the UK. Have dumped a fair few ultra rare VIC20 titles to date (Type Sniper, Bomber Word, Anteater to name three). Quote Link to comment https://forums.atariage.com/topic/297597-might-have-found-an-unreleased-prototype-of-moonsweeper-for-vic-20/#findComment-4377505 Share on other sites More sharing options...
cvga Posted October 25, 2019 Share Posted October 25, 2019 Awesome find! I love the Vic-20. It was the first computer that I owned and I still have it! Quote Link to comment https://forums.atariage.com/topic/297597-might-have-found-an-unreleased-prototype-of-moonsweeper-for-vic-20/#findComment-4378077 Share on other sites More sharing options...
eightbit Posted November 11, 2019 Share Posted November 11, 2019 Yep, as other said, cover that window. Use a piece of electrical tape and that should do it. And, dump it as soon as possible. If you do not have the equipment I am sure someone here on AA will be willing to help. Nice to see stuff like this show up for the Vic. I love my Vic-20! Quote Link to comment https://forums.atariage.com/topic/297597-might-have-found-an-unreleased-prototype-of-moonsweeper-for-vic-20/#findComment-4389163 Share on other sites More sharing options...
Tempest Posted November 11, 2019 Share Posted November 11, 2019 Nice! I hope this gets dumped. Always nice to see a new prototype surface. 1 Quote Link to comment https://forums.atariage.com/topic/297597-might-have-found-an-unreleased-prototype-of-moonsweeper-for-vic-20/#findComment-4389167 Share on other sites More sharing options...
Tempest Posted October 12, 2023 Share Posted October 12, 2023 What ever happened with this? 1 Quote Link to comment https://forums.atariage.com/topic/297597-might-have-found-an-unreleased-prototype-of-moonsweeper-for-vic-20/#findComment-5331996 Share on other sites More sharing options...
Mayhem Posted October 18, 2023 Share Posted October 18, 2023 I offered to dump it, he wanted to keep it and try doing it himself, and I can't recall if anything ever further happened. 1 Quote Link to comment https://forums.atariage.com/topic/297597-might-have-found-an-unreleased-prototype-of-moonsweeper-for-vic-20/#findComment-5334550 Share on other sites More sharing options...
carlsson Posted October 19, 2023 Share Posted October 19, 2023 I believe Schrödinger is strong when it comes to prototypes. Many prefer to leave it untouched so they don't know if it works or is dead. 1 Quote Link to comment https://forums.atariage.com/topic/297597-might-have-found-an-unreleased-prototype-of-moonsweeper-for-vic-20/#findComment-5335069 Share on other sites More sharing options...
Tempest Posted January 22 Share Posted January 22 Necrobump. Did this ever get dumped? Quote Link to comment https://forums.atariage.com/topic/297597-might-have-found-an-unreleased-prototype-of-moonsweeper-for-vic-20/#findComment-5610033 Share on other sites More sharing options...
+Psionic Posted January 22 Share Posted January 22 Not that I know of, or if it was, it wasn’t shared. I don’t believe Porky’s ever surfaced either. Quote Link to comment https://forums.atariage.com/topic/297597-might-have-found-an-unreleased-prototype-of-moonsweeper-for-vic-20/#findComment-5610092 Share on other sites More sharing options...
eightbit Posted January 24 Share Posted January 24 What a shame. I have a reader now and can offer to dump it as well if the OP ever resurfaces. Quote Link to comment https://forums.atariage.com/topic/297597-might-have-found-an-unreleased-prototype-of-moonsweeper-for-vic-20/#findComment-5611044 Share on other sites More sharing options...
Tempest Posted January 24 Share Posted January 24 I guess it wasn't actually Moonsweeper, but some diagnostic program. Quote Link to comment https://forums.atariage.com/topic/297597-might-have-found-an-unreleased-prototype-of-moonsweeper-for-vic-20/#findComment-5611128 Share on other sites More sharing options...
Dutchman2000 Posted January 25 Share Posted January 25 On 1/24/2025 at 2:54 PM, Tempest said: I guess it wasn't actually Moonsweeper, but some diagnostic program. Correct. Quote Link to comment https://forums.atariage.com/topic/297597-might-have-found-an-unreleased-prototype-of-moonsweeper-for-vic-20/#findComment-5611716 Share on other sites More sharing options...
carlsson Posted January 26 Share Posted January 26 It strikes me that it is a 24-pin 2732 in a 28-pin socket. I know some of the chips were backwards compatible, but I haven't checked pinouts close enough to tell which combination works like this. Also 2732 holds 4K so a rather small game for the VIC-20 where the majority were 8K, some of them 16K. Quote Link to comment https://forums.atariage.com/topic/297597-might-have-found-an-unreleased-prototype-of-moonsweeper-for-vic-20/#findComment-5612179 Share on other sites More sharing options...
Dutchman2000 Posted May 30 Share Posted May 30 1 Quote Link to comment https://forums.atariage.com/topic/297597-might-have-found-an-unreleased-prototype-of-moonsweeper-for-vic-20/#findComment-5668922 Share on other sites More sharing options...
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