Not much is known about this game, apart from the fact it was released onto the Intellivision system in 1983, and an advert was placed in an old computer magazine.
Sewer Sam was also planned for release on the Commodore 64, but never surfaced anywhere. It does not exist in Gamebase either, so it seems that the C64 version was scrapped. For what reason, it’s unknown.
Sewer Sam was to involve going through a series of tunnels to find some submarines which had sneaked into the system. Sam had to avoid various creatures, like Spiders, Crocodiles, Bats and Rats to try and achieve his goal.
Thanks to Fabrizio Bartoloni, he highlighted an interview with Craig Carmichael on Mat Allen’s website, where this is mentioned:
“[…] On the back of the Viking Raider box, it mentions that Sewer Sam and Blockade Runner were being lined up for release on the C64. Do you know how far along either of these were, and who was programming them? However I am almost assuming you may have done them if Interphase had survived.
Iirc, those were the games just finished when the company ran out of money. Not sure about on the C64.
The game Leon did for the C64 was called Vextrailian, but it did only limited sales.
[NB. None of these games have been found so far, not even by Gamebase64. So if you find an Interphase C64 game that isn’t Viking Raider out there, let me know!]”
Blockade Runner was eventually found, but Sewer Sam is still at large. Can you help us find it?
Contributions: K, Mat Allen, Fabrizio Bartoloni



Nice site!
This is the back of the box of Viking Raider with the mention of Sewer Sam expected on C64: https://images.launchbox-app.com//9eb67187-33b9-49b5-b0bb-4b4fc5ab16e0.jpg
From this old online interview with Craig Carmichael:
“[…] On the back of the Viking Raider box, it mentions that Sewer Sam and Blockade Runner were being lined up for release on the C64. Do you know how far along either of these were, and who was programming them? However I am almost assuming you may have done them if Interphase had survived.
Iirc, those were the games just finished when the company ran out of money. Not sure about on the C64.
The game Leon did for the C64 was called Vextrailian, but it did only limited sales.
[NB. None of these games have been found so far, not even by Gamebase64. So if you find an Interphase C64 game that isn’t Viking Raider out there, let me know!]”
Source: http://www.mayhem64.co.uk/interview/carmichael.htm
Hah yeah I interview Craig a long time ago, that’s my site ;)
Thanks everyone! Just updated the page! :)