Shareware Macintosh version with discussion board, high scores list, and screenshots.
Strategies, tips, and helper applications for running the Windows version.
Voice-based version that can be played over the phone by toll-free number. [Open Source]
Windows clone with downloads of the original DOS version as well.
Version for perl with instructions in the code. [Open Source, GPL]
Java Swing implementation of John E Dell's old game of narcotics commerce. [Open Source, GPL]
Freeware Windows or Linux version. [Open Source, GPL]
Online CGI version in which you create an account, click between the boroughs, and get locked out for time period when arrested.
An online multiplayer version of the game. Includes a FAQ, information on how to play, and a forum.
Freeware version for Windows or PocketPC with source code.