THQ will showcase four of its games, Saints Row: The Third, WWE 12, UFC Undisputed 3 and Warhammer 40,000: Space Marine at the Eurogamer Expo at Earls Court in September.
Saints Row: The Third, WWE 12 and Space Marine will appear as playable demos, joining games such as id Software's Rage and Final Fantasy XIII-2.
"We're delighted that THQ is bringing so many amazing titles to this year's Expo, giving gamers the chance to play the likes of Saints Row well before release," said Rupert Loman, managing director of Eurogamer.
"We're also thrilled that some of their top development talent will be presenting at the Developer Sessions, and we're looking forward to confirming those games in the near future."
The event, which takes place between September 22 – 25, will also feature some of the biggest titles from publishers like Namco Bandai, EA and Konami, as well as the best of independent development with the Eurogamer Expo Indie Arcade, presented by Sega.
GamesIndustry.biz will also hold a career fair at the show, with more details to follow.
Around 30,000 gamers are expected to attend, and details and tickets can be found at the official site.