Whether you call them Metroid-likes, exploration-based action platformers, big map adventures, or simply Metroidvanias, this sub-genre has exploded in popularity. What was once a criminally underused design template has become one of the most commonly used formats in games. That’s especially true for indie developers, who seem more than happy to make up for prolonged droughts between actual Metroid and Castlevania titles by concocting their own unique spins on the style. While some 3D games have adopted the formula to success (see: Batman: Arkham Asylum), this list will only highlight 2D-style titles for the sake of clarity. Here are 10 great Metroidvanias, listed in no particular order, that you’ll have a great time getting lost in.