Patient 13
[Unity, C#, VR]

Game Overview

Patient 13 is an immersive first-person virtual reality horror shooter, available on PC, set in an abandoned and decaying hospital. The player takes on the role of a patient who awakens in the hospital. Suffering from amnesia, the patient does not remember anything about who they are or why and how they are at the hospital. The player must explore and navigate around the dark corridors of the hospital to uncover the past and escape the hospital. While exploring the hospital the patient remembers glimpses of memories that may be used to solve puzzles, retrieve important items, and advance through levels. Navigating through the hospital won’t be easy, the player will have to engage in combat with many unknown creatures and overcome challenges to escape the hospital. The player will have access to a melee, and a pistol, with limited ammo, for combat but will have to find ammo packs around the hospital along with bandages to heal wounds. The objective is to survive, uncover memories, and escape the hospital. Lurking in the darkness of the hospital are hostile creatures that the player will have to face off to escape the hospital.

Genres

Virtual Reality
Horror
Action

Project Type

Individual

Game Design Document

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Development Features

VR Interaction and Core Systems

Developed interactive VR mechanics using motion controllers, Physical weapon handling, Inventory interaction and item pick-up, and Healing mechancis triggered through hand gestures and held objects.

Enemy AI and Combat Design

Designed and scripted multiple enemy types with distinct behaviors, Patrol routines with pathfinding, Detection systems using raycasts, and Chase/attack behaviors tuned for VR.

Built a boss AI featuring multi-phase attacks.

Balanced a pistol and melee combat through, Damage falloff, Cooldowns, Limited ammo and heals, and Deliberate melee hit timing for VR.

Exploration, Puzzle, and Progression Systems

Created progression loops based on environmental puzzle solving, collecting memory items, and locked areas requiring a key item.

Designed exploration flow to guide players subtly using environmental design techniques.

Technical Highlights

VR physical interaction framework using Unity XR Toolkit.

Gun/melee weapon systems with VR-specific considerations.

AI state machines (patrol -> search -> chase -> attack).

Boss phase logic with attack patterns and trigger based transitions.

Environmental puzzle placement/scripting.

Spatial audio design for detection and immersion.

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Patient 13[Unity, C#, VR]