If you've never played some variant of SimCity on any kind of computer, then you're probably not a gamer. It's the epitome of software toys, the kind of game that you keep playing and playing and playing all over again because it is infinitely replayable and almost impossible to pull yourself away from. The premise is simple - build a city, get people to come live in it, get them to buy stuff, make places for them to work, and then tax them to death. Sound easy? Ask New York Mayor Rudolph Giuliani.

The Palm Computing Port of SimCity is suitable for any Palm organizer running Palm OS 3.0 or later, like Palm III, Palm IIIx, or Palm V. You'll need 230K of free memory to install the software. It comes on a 3.5" disk, and is available in English, French and German.

The Palm device version of SimCity is based on the original "Classic" version. It has a simpler economic and city planning model than some of the newer versions like SimCity 2000 and SimCity 3000. But the game is still as addicting and challenging as ever, given the simplification that's required in order to run it on the Palm platform.

Most of the game is run from the main map screen, where you start off constructing a power plant, of which you have your choice of Coal or Nuclear. Coal plants are cheaper than nuclear plants, but over time they generate a lot of pollution. Nuclear plants don't give off pollution and produce a lot more power than coal plants, but your SimCitizens don't particularly like living anywhere near any kind of power plant (especially nukes), so you want to keep them far away from your city center.

Once you've built a power plant, you start zoning your city. There are three types of zones: Residential, Commercial, and Industrial. How and where you place these zones will be a major factor in whether your city becomes a New York, a Newark, a Detroit or a Belgrade.

Zones are square areas that you place on your map, and they need to be supplied with interconnected power lines or placed next to each other to receive power from your power plants. You have to build roads around them or the SimCitizens won't be able to get anywhere.

The kinds of zones you build and when you build them is determined by the zone demand indicator, which is located on the upper right part of your screen. When SimCitizens demand new housing, new places to shop, or new places to manufacture things, you'll be able to find out because the zone demand indicator has a bar graph that shows just how much they want it. Bars pointing upward indicate a positive demand while bars pointing downward indicate a negative demand.