I really thought it was a cool idea to have a second title to vector, which was one of my favorite mobile games by far! Although once you reach floor 16 or whichever floor had the maintenance tunnel, it feels like after that point the games glitches and you can't move forward. Like after that there is no more story progression. I don't know if it's glitched like that where I can't move forward in the story or just that actually is the end of that game. In any case I would love a third title!