Gaming franchises on consoles always seem to have a natural rise and decline. The clearly defined hardware generations that accompany console development allow various franchises to come in and out of existence gracefully. With the ever continuing and undivided evolution of the PC however, franchises fall out in a more noticeable manner. So many great series have dropped of the radar conspicuously, leaving us sad, bewildered and constantly asking why. Here are ten of our favourite PC franchises that are no longer around and need a revival.