On History: Swordquest
In the early '80s, Atari paired up with DC to produce a series of comics based on some of their games. There were four titles originally, and were packaged with some of the games themselves. The one that really stands out to me is Swordquest. In part because it was done by some really top-notch talent: Roy Thomas, Gerry Conway, George Pérez, and Dick Giordano. But what also stood out to me was the contest associated with it.
Pérez was a perfect choice for this project. Not only does the sword and sorcery genre well-suited to his style generally, but his intricate linework allows for relatively easy placement of hidden messages. In fact, I had to go to one of the later issues for the example here because the earlier ones are almost too well-hidden! But in getting Thomas and Conway to write the books, they were clearly wanted this to look like as professional a comic as possible. They tied in very well with the games themselves, and provided a solid bridge between the individual gameplay and the overall story arc Atari was trying to convey. (Frankly, the games themselves did not do that at all. There's barely any story within the games, though, to be fair, there's only so much story and gameplay you can pack into a 32 Kb cartridge!)
Ultimately, and unfortunately, the series was never completed. Atari ran into some serious financial difficulties mid-way through this contest. The first three games (and comics) were released, but only the first two contests were held. The third contest was cancelled part-way through, and the fourth (as well as the championship) got nixed entirely. My understanding is the fourth comic was never completed; I don't know how much was ultimately written or pencilled, but it never got to Giordano's desk for inking.
All of the Atari comics, including the first three issues of the Swordquest series can be read over at AtariAge.