Think Insaniquarium. In Microlife, you breed, feed, and protext these little critters, sell their eggs for cash and train them to defend themselves. It’s a WHOLE LOT of fun, and really, it’s on par with some of the $20 casual games I’ve played. However, Microlife is FREE and the link from here is mostly ad-free; I found it on the BBC website. There’s also a level password system built in, so you can go back anytime to play the next levels.

Play Microlife.

Simular Games that are more clickaholic than strategy:

While we’re here, I’m going to stick in an extra free game here: Insaniquarium in Java.