When playing any character-driven videogame I sometimes experience a sensation akin to my eyes unfocussing, and remember that I'm not, strictly speaking, controlling a body in a world, but interacting with a simulation that includes representations of a body and a world. The character is just an interfacial node in a vast tangle of visible and invisible elements; by moving the character, I cause objects, surfaces, creatures to load or unload, spring into motion or change colour and a million things besides.
Some games foreground these interdependencies by fictionalising the simulation as a giant organism or ecosystem, a more intriguing kind of "living, breathing" environment which is aware of your presence within it. Amongst these games is Ultros, a side-scrolling, psychedelic metroidvania - or as developers Hadoque might prefer, "gardenvania" - which launches next week.