If you just want free NBA action, the current NBA 2K Mobile is free-to-play and available on the Google Play Store .
Some third-party retailers like Gaming Dragons occasionally offer digital keys for a small fee (around $6–$7), which come with installation instructions. Consoles and Mobile NBA 2K13 Free Download Game
Dedicated retro sites like Old-Games.com host the 2012 PC version for download. If you just want free NBA action, the