Getting ready

Let's open up Unity and create a new project. We can call it Tower Defense, and after we have checked the 2D setting, let's click on create.

We have seen how it's possible to quickly create a tiled map in Chapter 4, Level Design , so feel free to create your map in that way. However, in this chapter, we will use a free package, which we can download at the following link: player26.com.

The package, created by Lauren S. Ferro, includes all the basic assets to create our Tower Defense game, including a very nice map that perfectly fulfills our requirements. In particular, we will find:

• A map with a road for Tower Defense games

• A set of different slime enemies

• Three levels of upgraded towers

• Multiple icons for each object of the package

• An arrow as a bullet

• Other interesting graphics (that we are not going to use) such as decorations, trees, and so on

The following image can give us a better idea of which kind of graphics this package contains:

Tip

Once imported, we may want to change...