Ah! Amazing-- only one problem: I know this is at or near the end of the game, I cannot remember what you need to do!!!
Um, if not too much trouble, can please you try sending me your save game? There might even be a bug I need to fix. Just go to, e.g.:
C:\Users\Calvin\AppData\Local\Venture the Void\6700\savegame\offline0
And send me the files in that folder. Just email them to firstname.lastname@example.org. That way I can load up your savegame and see if maybe there is a bug or something else that needs to be fixed before you can progress. Otherwise I can at least see where you are and maybe give you a hint.