This page of the guide to LEGO Harry Potter Years 1-4 provides the information on how long it takes to complete the game in several ways, such as completing the storyline itself, the storyline with side quests, and unlocking all the trophies.
- LEGO Harry Potter Years 1-4, despite not being a sandbox, can offer an open gameplay experience. However, by focusing on the game over the storyline itself, we can say that the suggested completion time of the game is quite short, as it lasts about 12 hours.
- This game, however, has much more to offer when it comes to additional in-game actions. Completing quests assigned by NPCs, unlocking all characters, and locating different collectibles can take up to 20 hours.
- It can take up to 27 hours for players to get all the trophies in LEGO Harry Potter Years 1-4. Trophies themselves are not difficult to get, however you need to work a little hard to get everything.