Heh, this actually has its own wikipedia page:
http://en.wikipedia.org/wiki/Virtues_of_UltimaThe Ultima series was a series of computer games that ran mostly through the 80's and 90's. They were fairly typical fantasy games, in terms of the setting and concepts. But the thing that really set them apart was that they presented consequences for the player's actions. There was a system of virtues, that when broken, could have actual ramifications within the story.
The creators of the games felt that the one thing that was wrong with most of the games at the time, was that as the player, you're supposedly acting as the hero within this fictional world, but would end up causing far more death and destruction than the villain ever did. The villain would typically not be seen until the end of the game, and most of the villain's presence wouldn't be detectable in most of the game world. In Ultima, they wanted to have moral choices that would have a visible impact, and strong visible indicators of the actual evil that you were fighting against.
So within the game's fictional Britannia, there was a code of virtues. As the player, you played the part of The Avatar (who was the embodiment of those virtues). These are not unlike a list of chivalric virtues.
It started with three main principles: Love, Truth, and Courage. The eight virtues derived from combinations of these, and the list was: Honesty, Compassion, Valor, Justice, Sacrifice, Honor, Spirituality, and Humility.
Throughout the series, they used the Ankh as the main symbol of the avatar and the virtues. (Note-- this is not why I have one in my arms, but rather contributed to me instantly resonating with these games. I already wore one for several years before discovering the Ultima series)
I thought I'd bring it up as another example of popular culture having a view of chivalry that isn't called chivalry by name. How often do you see a chivalric philosophy being espoused in video games? It's actually rather cool that it happened at all.
Sadly all that's left of Ultima is the MMO game, Ultima Online. It launched back in '97 and is still going, though it's now
extremely dated in terms of the gameplay and graphics.