The Metroidvania genre, a staple of modern gaming, owes its existence to more than just its titular franchises. As both Metroid and Castlevania reach their 40th anniversaries this year, a comprehensive examination of the genre reveals a rich history of mechanics and design choices that predated and informed these iconic series.
The term "metroidvania" itself is a portmanteau, combining elements from Metroid and Castlevania: Symphony of the Night. However, the core components of this genre—non-linear exploration, ability-gated progression, and interconnected world design—appeared in games well before the 1994 release of Super Metroid or the 1997 launch of Symphony of the Night.
Early Explorations and RPG Roots
Before the advent of the metroidvania, early exploration platformers laid some groundwork. The 1982 Apple II title Aztec featured exploration within a temple. More significantly, Japanese developers began merging exploration gameplay with role-playing elements. Xanadu: Dragon Slayer 2, released in 1985 for Japanese PCs, introduced 2D side-scrolling real-time RPG combat alongside backtracking and non-linear exploration, though its complexity made it inaccessible to many.
Metroid itself was pivotal in popularizing non-linear exploration on consoles, selling millions and encouraging players to map intricate worlds. Simultaneously, Konami experimented with similar concepts. The 1986 MSX game Vampire Killer, sharing a setting and bosses with the NES Castlevania, utilized hearts as currency and featured maze-like levels requiring keys to progress, foreshadowing later design choices.
Influences and Innovations in the Late 80s and Early 90s
Between 1987 and 1992, several titles introduced mechanics that would become staples of the genre. Koji Igarashi, a key figure behind Symphony of the Night, cited The Legend of Zelda as an inspiration, and Zelda 2: The Adventure of Link specifically showcased hidden areas, maze-like dungeons, and boss-gated progression.
Sega also contributed significantly. Wonder Boy in Monster Land's equipment system, which transformed the protagonist, echoed the upgrade mechanics found in Metroid. Its sequel, Wonder Boy 3: The Dragon's Trap for the Master System, expanded on this with player forms unlocked after boss fights, altering gameplay and enabling access to new areas. This game also featured a prologue boss fight against a previous antagonist, a narrative device later employed by Symphony of the Night.
Another notable Sega title, Quackshot: Starring Donald Duck on the Genesis, presented linear levels that nonetheless required items found in other areas for complete exploration, a concept Konami would later adopt.
The Defining Entries and Genre Evolution
While earlier games provided foundational elements, Super Metroid refined the genre with a detailed map and a distinct sci-fi horror atmosphere, elements expanded upon in later entries like Metroid Fusion and Metroid Dread. Castlevania: Symphony of the Night perfected the in-game map and integrated Alucard's transformation abilities directly into navigation and puzzle-solving. Konami continued to innovate within the series through mechanics like the soul system in Aria of Sorrow and the tag-team feature in Portrait of Ruin.
The 2000s saw continued refinement, particularly in the Castlevania series on Game Boy Advance and Nintendo DS, alongside successful indie interpretations like Cave Story and Shadow Complex. The 2010s saw games like Axiom Verge paying homage to Metroid's sci-fi roots.
The Souls-like Convergence and Modern Trends
In the late 2000s, the emergence of Demon's Souls introduced a new paradigm. While sharing metroidvania elements such as deep exploration, ability gating, and challenging boss fights, Souls games emphasized high difficulty, precise combat, and demanding reflexes. This led to a blurring of lines, with many modern metroidvanias incorporating elements like intricate combat systems, combo mechanics, and even roguelike features, as seen in titles such as Guacamelee, Dead Cells, Hollow Knight, and Blasphemous.
Furthermore, the modding community has breathed new life into classic metroidvanias through randomizer modes, which rearrange item locations and require players to adapt their strategies. This approach has even been adopted officially, with Bloodstained: Ritual of the Night, a spiritual successor to Castlevania, including a randomizer mode.
As developers large and small continue to find success with the genre, and with titles like Castlevania: Belmont's Revenge on the horizon, the metroidvania genre remains vibrant and evolving. The next four decades may bring further unexpected innovations and perhaps new torchbearers, but the genre's established foundation ensures its continued adaptation and appeal.