GTA: Mushroom Madness 3
Growing mushroom is not easy, but it is a profitable business since you would reap the reward of something you don't even pay for. All you need to do is plant them once and you can harvest it every time it grows. However, the animals would love to eat it and you don't want, so you need to protect it from the animals, who came to eat it. This game is played with a mouse and the idea here is to protect the mushroom from the animals. You can use your mouse to click on the animals and kill it. As you make some progress, you should buy some of the weapons since it would be harder from then.