Don't Look Back
If the Greek legends had been invented by programmers at Atari circa 1978, they might have turned out something like this. Don't Look Back is a modern retelling of the story of Orpheus and Eurydice, although there are some subtle differences. For one, the mythical poet favored a harp over a handgun, and for another, he didn't need your platforming skills to guide him on his journey.
Simply use the [arrow] keys to control your hero. Jump with [Up] or [Z], and shoot with [X] or [space]. Your path is linear and concise, but potentially frustrating if you're not up to the challenge. You have unlimited chances, and death will never set you back too far, but there isn't much room for error. It's a difficult game, but then, Hades is a difficult place to be. So is grief.
Analysis: Terry Cavanagh, the author of Don't Look Back, is part of a growing collection of independent game designers who are telling personal stories in classic video game language. This is not a brand new movement, but it has only recently started to transition into a browser-friendly format. The fact that this emotionally rich game is already being well-received by the harsh critics of Kongregate bodes well for literate gaming.
The antique art style serves the same purpose as in The Majesty of Colors; it lets your imagination fill in details and makes the characters relatable. It was always easy to identify with Pitfall Harry's troubles, even though he never said a word.
However, the difficulty level of Don't Look Back, though appropriate to the storyline, limits its audience. You can't tell your mom this story, unless of course your mom was a wiz at Montezuma's Revenge. It takes a specific kind of gaming literacy to make these jumps and dodge beneath these leaping creatures.
Given that you can make it to the ending, you'll find that Don't Look Back is an interpretation of the myth of Orpheus, rather than a simple remake + action game elements. Cavanagh changed the ending for a reason. The resulting story means something specific to me, but if you are young enough or lucky enough to have never lost someone close to you, it will mean something different to you. Or even nothing at all. It can just be a tough platform game with cool retro graphics.
But every game with a lead character necessarily has a moral. Every single one. It's just rare that the moral is so uplifting.