Speaking of Doug Tennapel (I know that's the wrong captilization, but I'm too lazy to bracket it so it's not a wiki word), The Neverhood
is worth looking at (if you can find a copy, since it's rare, but I think there's a stripped-down version of the game available online with Doug's blessing) if you want to go the "allegorical" route. Although it's obvious that it's based on the Garden of Eden and the Biblical story of Genesis, it's mostly just a wacky little humorous adventure with good visuals and great music. It's based off a Bible story, but it merely uses it as a backdrop for something with universal appeal by not beating one over the head with its message and not trying to moralize. It's inspired by the Bible, but its whole purpose is not to be Biblical.
...Also, it's worth playing because it's a good game, the claymation is awesome, and the music is both catchy and hilarious.