Harry Potter and the Deathly Hallows: Part 1 is an adaptation of the movie of the same name. The player takes on the role of Harry Potter on his quest to find the Horcruxes; the source of the villain's immortality. In contrast to the previous games based on the franchise, this is a third-person shooter. The levels portray key moments from the movie.
However, Harry does not use real weapons; he relies on his magic wand to mow down enemy hordes. He has different magic spells at his disposal; both offensive and defensive. The offensive spells are similar to regular weapons, such as Expelliarmus acting like a machine gun, while Stupor works like a gun. The defensive ones are used to turn enemies against each other or create cover. This can be useful because the game features a classical cover system where Harry can duck behind to regenerate his health. With him are his AI allies Hermione and Ron, who fight on their own. New or upgraded spells are earned after level-ups.
In addition to the shooter sections, there are first-person stealth missions in which Harry needs to avoid detection. For this purpose, he uses a invisibility cloak that has only limited power; if it runs out, Harry is out in the open. It is recharged by standing still. Between the main missions, the player has to solve other quests in any order. Those have nothing to do with the movie plot.
The challenge mode is unconnected to the campaign and includes missions like killing as many foes as possible in a limited time.