If you are looking for the game today, here are the most reliable ways to find it: NBA 2K11 | 2K Games

Released in October 2010, NBA 2K11 was a turning point for the franchise, effectively ending the dominance of competitors like NBA Live . Key features that keep players coming back include:

Intel Pentium 4 2.4 GHz (minimum) or 3 GHz Dual Core (recommended). RAM: 512 MB to 2 GB.