Defenders of the Earth
Dragon's Lair - It is very possible that these series of comics were based off the video game, not the cartoon. Oh well...
There were two other series of Droids comics - one in '94 and another in '95. The above series is clearly based on the Droids cartoon.
Note: I've left out comic book adaptations of Double Dragon and Dexter's Laboratory. Double Dragon had a 6 issue series, but it wasn't based on the cartoon at all. It was strictly an adaptation of the video game. As for Dexter's Laboratory...while I do love the show, I feel that Dexter's Laboratory was the beginning of the end of the 80's/90's cartoons and clearly marks the end of an era.