as well as mail interference (for example altering a letter to ensure a missed deadline was marked in time by a forged postmark). According to reviewer Martin Croft, in the early 1980s, Two players managed to get into trouble with the police ... [while] involved in complex negotiations about an attack on the gamer playing Britain. To avoid postal delays, one sent the other a telegram which read ATTACK ON LIVERPOOL CONFIRMED. Both spent some time explaining to the police that it was only a game. In the 1990s and 2000s, the number of postal Diplomacy zines has reduced as new players instead joined the part of the hobby that plays over the internet via e-mail or on websites. In April 2010, Graustark itself ceased publication. As of 2011, there are only a few active postal zines published in the US, one each in Canada and Australia, and several in the UK and elsewhere. In order to reduce postage and printing costs, as well as for environmental reasons, several zines (e.g. 'Western Front', 'Maniacs Paradise' ) are distributed to subscribers via emailed links to the zine's web page when a new issue appears, or are emailed out as pdf files, for subscribers to read on screen, or print out as they choose. Some zines maintain a dual existence as paper and digital publications. The first known electronic Diplomacy zine was Mad As Hell, distributed on Usenet in 1982. Diplomacy has been played through e-mail on the Internet since the 1983 debut of The Armchair Diplomat on Compuserve. The GEnie online service offered fully automated versions of Diplomacy and variants to subscribers. Smartphone apps There are also several implementations for smartphones, like Droidippy, Diplicity (Android), and Conspiracy, all of them free. Realpolitik for Android also has a hot-seat mode for local play. While Subterfuge provides a modern adaptation. Diplomacy computer games Avalon Hill released a computer game version of Diplomacy in 1984 for the IBM PC. Computer Gaming World in 1994 described it as "a flop". Hasbro Interactive released a computer game version of Diplomacy (called Avalon Hill's Diplomacy) in 1999 under the MicroProse label, and developed by Meyer/Glass Interactive. A major fault, like with the Avalon Hill version, was that the computer AI was considered poor, one reviewer remarking "Gamers of any skill level will have no trouble whatsoever whaling on the computer at even the highest difficulty setting." Paradox