Tropico 3 is one of those "what's that?" titles, meaning you don't quite know what it is until you see it. It's a civilization-building game, and it's based in tropical lands.
Tropico 3 is extensively detailed. From the graphics to the sound effects, everything seems authentic to the tropical theme. The only complaint I have is with the system requirements. I have to play the game in 800x600 to keep from lagging or freezing the game. I also have to play the game at an extremely low quality visual state that looks very dated. If your system is powerful enough, however, the game should look gorgeous.
In the beginning of the game, you can create a customized character that acts as you, the player, and as the governor of the land. You can actually interact with your citizens, which really adds to the feeling of having a real civilization to build.
I never tried playing online, but the options included playing on LAN and playing over Windows Live. I also noticed scoreboards (or highscores), which should tickle the fancy of many overly competitive players.
Keep in mind that this is not a strategy game and does not focus on combat. It has some combat in it (not much), but it is not focused on that, and it really isn't about raising an army.
To summarize, I must say this is a great game, and it's definitely worth buying, if you're interested in civilization-building games. However, you should check out Civilization V first.
Another thing to look for when browsing PC games is the system requirements. There are really 4 things you need to worry about: RAM or memory, processor, video card, and finally, the hard drive space. Memory can be upgraded fairly easily, and it shouldn't cost much. We recommend having at least 1GB memory, 2GB if possible. Your processor needs to be fairly modern, and a Pentium 4 probably won't cut it. We recommend a 1.8Ghz Core 2 Duo or better. Your video card should support DirectX 9 (or higher) and have a minimum of 256mb memory attached to it. We recommend 512mb or greater. Hard drive space is subjective, but we recommend having a fairly large amount of space. You could settle for as little as 40gb and be able to play most games, but we recommend having 80gb or more space to make sure you have room for multiple games at once. Most PC games don't run straight from their disc. They usually require an install process, and most modern games require around 8gb of free space to install.
PCs are the ultimate game console, because they can be upgraded, and they will never go out of style. PCs can also play most old game systems through emulators, so if you lose your Playstation, you can just play your games on your PC. You can also play classic arcade titles and have infinite coins!
A lot of people complain about having to use a mouse and keyboard to play PC games. This isn't a requirement, fortunately, and we have what we call gamepads or joypads. Yes, we can use game controllers! We can even use Xbox controllers! That said, it's not as plug-and-play as a game console, and some games simply will not work with your joypad. Fortunately, Steam tells you if games support controllers, and if your favorite game doesn't support them, you can map the controllers to keyboard and mouse controls.
Just be careful when buying PC games. Read reviews carefully. If a game gets a 1/5, don't buy it. If your PC is a cheapie, don't expect modern 3d games to work. Read the system requirements very carefully. If you don't know anything about your system, you can find help in the PC Stuff forum.