Apparently it's legit. Unfortunately tickets, which were free, are no longer available.
To celebrate the launch of The Sims 4 For Rent Expansion Pack, Electronic Arts is bringing the magic of The Sims 4 to life. It’s time to leave the real world behind and build the future... virtually. For the first time ever, Sims players can experience the world of The Sims 4 as a property manager. Use your architectural talents to build houses, apartments, sheds or palaces, becoming the ultimate property mogul before battling to trade your creations with friends, foes and strangers alike. Bringing Simnation to Central London, the Estate Agents Landgraab & Son(s) welcomes you through its doors, just make sure to say Sul Sul on entry!
Your ticket provides admission to an event at which we may film, record or photograph attendees (“Recordings”). By attending the event, you voluntarily grant Electronic Arts Inc. and its affiliates the irrevocable right to use your likeness, image, name and voice in the Recordings, or any modification thereof, for any purpose, including in any advertising, publicity, marketing and promotions, in any manner and in any and all media throughout the universe in perpetuity.
https://www.eventbrite.com/e/landgraab-sons-the-sims-4-estate-agents-tickets-764445847107?aff=ebdsoporgprofile
