Freeware Windows or Linux version. [Open Source, GPL]

Java Swing implementation of John E Dell's old game of narcotics commerce. [Open Source, GPL]

Conquer the streets of Los Angeles, Seattle, and New York. Plunge into a world of dirty cops, loan sharks, pimps, informants, and bodyguards. Features free windows download, online high scores, and forums for players.

Version for perl with instructions in the code. [Open Source, GPL]

An online multiplayer version of the game. Includes a FAQ, information on how to play, and a forum.

Windows shareware version and top dealer list.

Windows clone with downloads of the original DOS version as well.

Online CGI version in which you create an account, click between the boroughs, and get locked out for time period when arrested.

Strategies, tips, and helper applications for running the Windows version.

Freeware version for Windows or PocketPC with source code.

Shareware Macintosh version with discussion board, high scores list, and screenshots.

Voice-based version that can be played over the phone by toll-free number. [Open Source]

Windows clone of the original DOS game but without the random events.