Similar to what they did for the PlayStation 4 release, Metanet Software's ninja platform N++ will have a Beta for users to test out the game. The purpose being to figure out minimum specs, as well as I'm sure do some bug testing.
You can check out all the details and sign up for the Beta here. It is currently only for PC users, but Mac and Linux is planned to be supported after launch. The release date for the PC version of N++ is "SOON" according to the FAQ.
N++ is out now on Steam. Check out the launch trailer here.