Machinima is when you create an animation using a video game. One of the most popular and longest lasting has been Red vs. Blue which has been created by RoosterTeeth. There are multiple examples of people doing this with all types of video games. Just look at YouTube and you will find tons of them.
Using Studio 300 it is easier than ever to create own your own. Using a game like Minecraft you can use our Screenflow software and record while you play the game. After that you can edit the recordings — even add dialog, music, and other sound effects — in video editing software such as iMovie.