This issue has been spoken about on the forums and possibly there is a suggestion posted here.
I think if Open Game is renamed to Open Saved Game it would make more sense, as Open Game and Open Adventure could be the same thing to a player. This fact is only apparent when a game is loaded, as when first loading Runner Open Game is greyed out, naturally, so the confusion could happen when the player has a game running but wants to revert back to save from the day before or wants to play another save from a different adventure game. Renaming as suggested would be more informative and less confusing.
Also as follow on suggestion; why not show file path when player enters the save command? i know the file is saved in the adventure games folder but a player who downloaded the game might not remember which folder they put it into.