LEGO Harry Potter: Years 1-4 is an action-adventure video game developed by Traveller's Tales and released in 2010. This game lets players experience the first four years of Harry Potter's magical journey at Hogwarts in the whimsical world of LEGO. Players can explore iconic locations from the Harry Potter universe, attend classes, learn spells, and team up with friends in co-op mode. The game combines the quirky and creative gameplay of LEGO with the expansive Harry Potter lore, offering a playful yet immersive experience for fans of all ages.