That is a cool idea and fits great to the theme. A pretty spooky atmosphere where you never know, what's behind the next corner.
It's really cool, that you made it multiplayer again (remember your western one from the last jam^^). Played it alone so far, but could be nice to play that together.
Had a few smaller problems (e.g. for some reason cassettes #2049 and #2050 didn't snap into the player, and there where "invisible" walls sometimes), also it runned pretty laggy ( unfortunaely noticed it a bit in my stomach already), so that i stopped after the 4th casette. So probably missed the final story, sorry...
But all in all a pretty solid entry and think with some polishment could become a cool experience :-)