I recall there being multiple Star Trek games for the Apple II. In fact the first reasonably large program I wrote was a Star Trek game. I had played the a version at a store and developed a similar game (based upon Wrath of Kahn) as a project for a high school programming class. Being the only geek in my High School, I got to sit at a computer and hack for the whole semester, while the rest of the student attempted to learn Basic. I didn't have the source for the game I had played, and, of course, my technique at that point was terrible, but the game is OK. Kahn usually gets the first shot and usually takes out the engine room, so winning can be a bit tough. My version also has some graphics for weapon fire. It takes more than 16K though. I also wrote a federation vs klingon fleet battle program where you had to program the action of your ships. It favored the klingons too much, and usually the only way to win was to get your ships close enough to the klingons and take them out with a self destruct. I had always planned to make it a more even matchup but never got around to it. I still have source and disk images somewhere. I may have to play with them again at some point. Eric