Survive as many levels as possible by buying and upgrading turrets to destroy aliens. Getting rid of aliens makes money which can be invested or spent on upgrading.

Deliver the envelopes to their correct box. Warning: it is not as easy as it sounds!

Do not disappoint earth - as their last line of defence!

use your mouse and estimate the head count and for each answer you score points.

Your task is to help main character build up his farm. You'll need to buy soil, plant seeds and grow plants. Sometimes you'll have to fight bugs or face drought. In order to develop your farm, you'll need to run many research programs in the lab. Every plant has its own individual demands about watering and weeding, so all the time you'll have to act fast or you'll loose your crops. But if you work hard, you can make this farm the most prosperous farm in the universe.