Game Matters, Scott Miller's blog (thanks Voodoo Extreme), in addition to the latest history lesson about how Apogee Software pioneered the shareware model, offers word that Prey has sold over a million copies, and that plans are already in place for a follow-up, saying: "There will be a sequel, and we think we have a interesting follow-up story to tell and some all-new innovations to bring new excitement to the table." This leads to a broader point that they will be expanding their role as an intermediary for smaller game developers:

So, going forward, 3D Realms will become a studio polygamist, teaming up with more than one studio, working on perhaps 4-6 external projects simultaneously, creating new IPs and hopefully helping more and more deserving, talented independent studios achieve financial independence, and the ability to call their their own creative shots in the future. I am hiring one or two additional IP Creative Directors to assist me in the management of these games. We've already been contacted by numerous highly qualified independent studios, and more are welcome to contact me. In a way, we're going back to our roots. Fun times ahead!