Let's begin by reviewing our objective.

In your local project repository, create and switch to a new Git branch named deployment-prep. This branch will be used for all changes related to preparing your game for web deployment.

Next, we'll perform initial verification steps to understand the current state.

Confirm your current Git branch. You should likely be on the main or master branch.

Now, let's build the solution by executing the necessary Git commands.

Step by step checklist:

1. Create a new Git branch named deployment-prep.
2. Switch your working directory and Git's focus to the newly created deployment-prep branch.

The following documentation sections are going to be helpful:

• Git Branching

With the changes in place, let's re-verify our work to ensure it meets the specification.

Confirm that you are now on the deployment-prep branch.