It is a reboot of the Syndicate series developed by Bullfrog Productions, changing the genre from a tactical shooter to an FPS.
In 2017, the Eurocorp mega-corporation is born after the world's largest corporate merger. Eurocorp releases the DART chip in 2025, a neural chip implant that allows users to access the dataverse and makes most electronic devices obsolete. As a result of the DART chip, the world is no longer ruled by governments, but by large mega-corporations known as "Syndicates". However, only half of the world's population embraces the chip, while the "unchipped" are abandoned and denied the same benefits afforded by their chipped counterparts. Furthermore, corporate espionage for dominance between the Syndicates has become the norm, resulting in the creation of "Agents": bio-engineered and chip-augmented enforcers who protect their corporate masters' interests.
Source: Wikipedia, "Syndicate (2012 video game)", available under the CC-BY-SA License.