Lego Marvel's Avengers is a Lego-themed action-adventure video game developed by Traveller's Tales and published by Warner Bros. Interactive Entertainment, for the Nintendo 3DS, PlayStation 3, PlayStation 4, PlayStation Vita, Wii U, Windows, Xbox 360, Xbox One, and OS X. It is the spin-off to Lego Marvel Super Heroes and the second installment of the Lego Marvel franchise. The game is based on the Marvel Cinematic Universe, primarily following the plots of The Avengers and Avengers: Age of Ultron, with single levels based on Captain America: The First Avenger, Iron Man 3, Thor: The Dark World, and Captain America: The Winter Soldier.

Lego Marvel Super Heroes is a 2013 Lego-themed action-adventure video game developed by Traveller's Tales and published by Warner Bros. Interactive Entertainment for the PlayStation 3, Xbox 360, Wii U, PlayStation 4, Xbox One, Nintendo Switch, and Microsoft Windows, and published by Feral Interactive for OS X. The game features gameplay similar to other Lego titles, such as Lego Star Wars: The Complete Saga and Lego Batman 2: DC Super Heroes, alternating between various action adventure sequences and puzzle solving scenarios. The handheld version of the game by TT Fusion was released under the title Lego Marvel Super Heroes: Universe in Peril for iOS, Android, Nintendo DS, Nintendo 3DS and PlayStation Vita. A Nintendo Switch version was released on October 8, 2021.