LONDON, June 28 (Reuters) - Activision Blizzard said its studio that developed "Call of Duty" would set up shop in Barcelona, putting into action its pledge to invest in Europe after Brussels approved Microsoft's $69 billion acquisition of the company in May.

The U.S. company said on Wednesday its game developer Infinity Ward, which created the blockbuster first-person shooter game, would join its Digital Legends mobile games unit in the Spanish city.

The decision comes after Britain blocked the Microsoft takeover, prompting Activision, which has studios in Guildford and Warrington in England, to say it would "reassess" its growth plans for Britain.

(Reporting by Paul Sandle; Editing by Kate Holton)