Can You Play NBA 2K12 Online for Free? No.

No. NBA 2K12 requires a purchased copy for online access—there is no free-to-play version.

Free Basketball Alternatives

• Mobile/PC free-to-play basketball games (availability varies by region).
• NBA 2K Online (Asia-only, different game).

For current online 2K play, buy a recent entry (many have free modes like MyCAREER Neighborhood).