Visually, the game leverages modern rendering techniques to create environments that are both beautiful and grotesque. The contrast between the mundane architecture of subways and apartments and the organic, decaying manifestations of Roman’s subconscious creates a visually arresting experience. When users download the game, they are treated to high-fidelity textures and lighting effects that elevate the "lo-fi" aesthetic inspiration into something much more immersive.

The narrative of POST Trauma follows Roman, a middle-aged train conductor who finds himself trapped in a surreal, nightmarish reality. The game’s strength lies in its ability to evoke a sense of profound isolation and dread without relying solely on jump scares. Instead, it utilizes fixed camera angles—a hallmark of the genre—to manipulate the player's perspective and create a cinematic, often claustrophobic, experience. This stylistic choice forces players to confront the unknown lurking just out of view, heightening the tension of every hallway and empty room.

Gameplay mechanics in POST Trauma prioritize exploration and puzzle-solving over raw action. While there are encounters with terrifying entities, the player is often encouraged to avoid conflict or use limited resources wisely. The puzzles are designed to be tactile and logical, requiring players to pay close attention to environmental clues and lore found in discarded notes. This slow-burn approach rewards patience and observation, distinguishing it from the faster-paced horror titles common in the modern market.