As the years passed, he started to work on bigger projects and eventually became known for creating the fictional universes and scripts for three major accolade-fetching Blizzard Entertainment’s media franchises: Warcraft, Diablo and StarCraft. Apart from Blizzard, Metzen was the one to author the graphic novel series based on a futuristic second American civil war. Also, he co-authored the “digital-only” series turned Trade Paperback release, “Transformers: Autocracy” together with two other people, author Flint Dille and artist Livio Ramondelli. Currently, the trio is working on the follow-up series, “Transformers: Monstrosity”.