Thanos was a genocidal warlord from Titan, whose own main objective was to bring stability to the universe by wiping out half of all life at every level, as he believed its massive population would inevitably use up the universe's entire supply of resources and condemn this. To complete this goal, Thanos set about hunting down all the Infinity Stones, being confident that the combined power of the Stones would achieve his goal. Thanos forged alliances with Loki, and Ronan the Accuser, in order to track down some of the Stones: However, both alliances cost Thanos much of his resources, including the Mind Stone and the loyalty of his daughters, Gamora and Nebula. Fed up with all his subordinates' ongoing failures, Thanos made the decision to seek and procur the Stones himself, and he began by forcing Eitri to create the Infinity Gauntlet for him so that he would be able to wield the power of the Stones safely.
Thanos then engaged in a ferocious crusade in order to obtain the Infinity Stones. During his mission, both Thanos and his Black Order invaded multiple planets and slaughtered thousands to gain the stones, including Loki and the Asgardians. This quest even forced Thanos to sacrifice his beloved Gamora, in order to take the Soul Stone. Thanos soon found himself challenged by the alliances of the entire universe's greatest heroes, which included the Avengers and Guardians of the Galaxy. However, despite facing off against the powerfully combined opposition and the wrath of Thor, Thanos still ultimately triumphed as he completed the Infinity Gauntlet, using it to finally complete his goal through the Snap, which resulted in half of all life in the universe being wiped out with a mere snap of his fingers.
Following his Snap, Thanos had then ensured this could never be reversed by destroying all of the Infinity Stones, resulting in the Avengers tracking him down on Planet 0259-S, where Thor executed him with Stormbreaker. For five years, the universe continued to live on with the devastating ramifications of his actions. In 2023, the Avengers resurrected the victims of his Snap after traveling through time to collect the Infinity Stones, and while they came across an alternate version of himself, with great personal sacrifice, they finally ended his reign once and for all.
Thanos is a major antagonist in the game. He first appears in Awesome Havoc Productions choke-holding Jack Productions to obtain his camera, the Foundation Element. He is defeated, but escapes with the element. He is later seen when the Foundation Gauntlet is completed as Queen Destruction triumphs. He is defeated along with the rest of the villains as Queen Destruction is killed.
- Vine Cut (Double sided sword)
- Sword Switches (Double sided sword)
- Big Transform
- Super Strength
- Cracked Lego Walls
- Super Strength Handles
- Laser (Power Stone)
- Portal Gun (Space Stone)
- Relic Scanner (Reality Stone)
- Magic (Reality Stone)
- Mind Control (Mind Stone)
- In the Marvel Cinematic Universe, he is voiced by Josh Brolin, who reprises his role in the game.
- The Soul Stone and the Time Stone are the only Infinity Stones who don’t provide abilities when Big Transforming and having the Infinity Gauntlet.