Metroidvania is when Castlevania introduced Metroid-style exploration and ability upgrades to their games. Metroidvanias also refer to games that are like Metroid, but also include the RPG elements that Castlevania introduced like XP and an expanded inventory system.
Hollow Knight seems more like a Metroid-like than a Metroidvania so far (4 hrs in).
But Metroidvania, connected not just to Hollow Knight, but prefiguring Hollow Knight in a causal sense, means that basically any post-SotN side-scoller with branching paths and any kind of upgrade system is a Metroidvania.
Hollow Knight seems more like a Metroid-like than a Metroidvania so far (4 hrs in).
But Metroidvania, connected not just to Hollow Knight, but prefiguring Hollow Knight in a causal sense, means that basically any post-SotN side-scoller with branching paths and any kind of upgrade system is a Metroidvania.