For those unfamiliar with the 1999 PC classic, System Shock 2 is a first-person survival horror game with RPG elements. It was developed by Irrational Games and Looking Glass Studios, and it was designed by none other than Ken Levine (perhaps you've heard of him). If you need another point of reference, the BioShock series is considered a spiritual successor to System Shock. You like BioShock, right?
Rock, Paper, Shotgun has a rather lengthy piece detailing how Night Dive managed to secure the rights and what to expect from the GOG.com release. The download will feature a great deal of bonus content, including concept art, an interview with Ken Levine and more. Again though, the takeaway is pretty simple: As of tomorrow, System Shock 2 is back, waiting for you to play it all over again or – if you're lucky – for the very first time.