Interesting simulation game - fixing computers for money (how 1990s). You can also use Free Build mode to 'sanity check' your build to see if the components you want will fit in the case you picked, as well as how things will roughly look when your finished. Granted, not all manufacturers are represented - but you are given a pretty big set of tools to work with. Definitely hope they add more manufacturers in the future, as well as new options as technology advances.