What Metroidvania Level Design Teaches About a Building's Circulation

Metroidvania games, named after the two series that defined the format, Metroid and Castlevania, are built around a single interconnected map rather than a sequence of separate levels. A player moves through the same handful of rooms dozens of times over the course of a playthrough, and the entire design challenge for the people building these games is making that repeated movement feel different each time. That challenge is, almost word for word, the challenge of designing circulation through a building, and the genre has quietly become a useful case study for anyone thinking about how people actually move through the spaces they design.

One map, many visits

Unlike a linear game, a metroidvania map is a single connected structure that the player revisits constantly, usually because a new ability lets them reach an area that was blocked off earlier. A corridor that was a dead end on the first visit becomes a shortcut on the fifth, once the player has picked up a double jump or a key that opens a locked gate. Good building circulation works on the same layered logic. A hallway that feels purely functional on a first walk-through can become the most efficient route through the building once someone understands how the floors connect, and designers who only test a layout from a single entry point miss that entirely.

The locked door as a design tool

Every metroidvania uses locked doors deliberately, not as an obstacle to frustrate the player but as a way to control pacing and give later discoveries meaning. A door the player cannot open yet is not wasted space, it is a promise that the layout will keep making sense as the player's capabilities grow. Buildings use the same tool constantly in the form of staged access: a lobby that is open to anyone, a floor that requires a keycard, a mechanical room that only maintenance staff can reach. The best version of this, in games and in buildings alike, makes the restriction legible even to someone who cannot pass through it, so the space never feels arbitrary.

Landmarks that keep players from getting lost

Because the map is so interconnected, metroidvania designers rely heavily on landmarks, a distinctive statue, a strange colour of lighting, a room shaped unlike any other, to stop players from feeling lost in a maze of similar corridors. Without those landmarks, even a well-designed map becomes disorienting the moment a player has to backtrack. This is close to the exact problem solved by good wayfinding in a large building, where a distinctive piece of art, a change in ceiling height, or a shift in material tells a visitor where they are without a single sign, a principle explored further in why ceiling height changes how a room actually feels.

The map screen nobody in a building gets

One advantage every metroidvania player has that a building occupant does not is the in-game map screen, a complete overview of the explored area available at the press of a button. Players lean on it constantly, which tells designers something important: even a well-designed space benefits from an orientation tool, because no layout is intuitive to everyone on a first pass. Buildings cannot hand out a map screen, but they can borrow the underlying idea through sightlines, a lobby that reveals the shape of the floors above it, or a staircase that is visible from the entrance so the building explains its own structure before anyone has to ask.

Shortcuts earned rather than given

A metroidvania almost never gives a player a shortcut for free. It is usually unlocked by an ability picked up elsewhere, which means the player has already built a mental model of the long way around before the short way becomes available, and that long way around is what makes the eventual shortcut feel satisfying rather than confusing. A well-planned building offers something similar through secondary circulation, service corridors and back stairs that most visitors never use but that make the building legible to the people who work in it every day, a theme covered from a different angle in every building starts with the ground.

Density without confusion

The hardest trick in metroidvania design is packing a huge amount of connected space into a map that a player can still hold in their head. Games like Hollow Knight are praised specifically for achieving density, dozens of interlocking regions, without ever feeling unreadable. That balance between density and legibility is exactly what separates a building that feels efficient from one that feels crowded, and it is the same balance discussed in home architecture: designing spaces that work, where the goal is never simply fitting more into less space but making the added density feel organised rather than imposed.

Backtracking that feels like progress

Backtracking gets a bad reputation in game design discussions, treated as padding that stalls a player's sense of forward motion. The best metroidvanias turn backtracking into something closer to a revisit: the same hallway seen with new abilities, new context, and new understanding of how it connects to everything else, so walking through it again does not feel like repetition. A building that rewards being walked through more than once, where a second visit reveals a relationship between spaces that was not obvious on the first pass, is doing the same work, something one thousand museum touches on when it describes how a landmark tower reads differently from the ground than it does from a distance. Circulation that only works the first time a visitor walks it is a weaker design than circulation that keeps paying off on the tenth visit, which is the entire argument a metroidvania map makes every time an old corridor becomes useful again.

Where the genre stops being useful

A metroidvania map can be redesigned with a patch. A building cannot be patched once it is poured, framed, and occupied, which is the single biggest difference between the two. Game designers can watch players get lost in early testing and simply move a landmark or widen a corridor before launch. Architects get one real shot at circulation, short of a costly renovation, which is why the genre is best used as a thinking tool during design rather than a literal blueprint. The lesson worth keeping is about legibility, not about layout, and that lesson travels well even though the medium does not.