I don't list a lot of commercial software here on Software Gadgets, but every once in a while something really catches my attention. Fish Tycoon is a fun game that can be played a few spare moments at a time -- and the game continues running even when you aren't playing and when your computer is off (by updating for time passed the next time you start it). The premise is simple. You start with a fish tank, a few basic fish and a bit of money. It's your job to breed exotic hybrid fish and sell them for lots of money in your shop. Of course, fish are delicate creatures and have to be fed and properly cared for or they die instead of breed -- so there are often surprises when you check back into the game. The are supposedly 400 or so different types of fish you can breed. I've only seen 10-15% of those, so there is a lot of game here.
Fish Tycoon is fun to play and easy to play during short breaks in your work during the day. It also has a very nice fish tank screen saver. You can download the program for a time-limited free trial -- and if you like it is is only US$19.95 to buy.
Operating System: Windows 98+
License: Commercial Demoware