One of the weird thing about playing dungeony dragony computer games from the 80's is the existence of a whole network of games by disparate designers and publishers that allowed you to import characters from other games. My original attempt to map out this phenomenon included 10 different games. But based on the comments to that post and further research, I've added a few more games:
So what the point of all of this? Heck if I know. I just like contemplating how, if you played your cards right, a character you made in 1981 for Wizardry could end up spending 1985 and 1986 in the worlds of Bard's Tale I and II. Maybe along the way they team up with your four PCs from Ultima III. Will they all go on to Faerghail? Will some of them go fight the Dragon Wars? Just thinking about those possibilities gives me good time feelings.
But I do think there's a seed of an idea here that could be used in tabletop RPG gaming. Each rectangle on my chart above represents a constellation of places and events. You could build a lifepath system for experienced PCs using a flowchart made in a similar fashion. Each stop on the flowchart would then come with some sort of die chart that would tell you what happened to the PC.