In your personal Steam profile you can see your average game completion percentage (which, for me, sits at a pathetic 33%). However, I can't seem to find a way to see which of these games Steam considers actually completed. Simply looking at a game's achievements does not seem enough for me: for instance, the game Splice has a main game and an epilogue, but is the game completed when the main section is, or only when you've finished the epilogue?
Even if these details were obvious from looking at a game's achievements, going through every game you own and checking these achievements requires a ridiculous amount of time if your Steam account is like many peoples'. If Steam already feels it knows what games you've completed I was hoping they might also have a list of said games. So the question is, is there a way to see a list of all games that Steam believes you have completed (but not necessarily gotten 100% achievements on)?
EDIT: See comment on accepted answer.