Complete 3D FPS Game in Unity C# For Beginners

Learn to implement player movement in a 3D Unity game using a character controller, horizontal and vertical inputs, Vector3 moveDirection, and delta time for smooth motion.

Improve player movement by computing the actual movement vector from input and orientation, using transform.forward and transform.right, then normalize and apply move speed with the character controller.

Implement a speed booster in your Unity 3D FPS project by toggling between regular move speed and turbo run speed with the left shift key, controlled by current move speed.

Fix infinite jumping by using a ground check with raycast to only allow jumps when grounded. Implement a ground layer, ground check object, and isOnGround boolean to control jump input.

Create a robust camera system in Unity with a separate camera point, mouse-driven horizontal and vertical rotation, vertical clamp, optional invert look, and late update synchronization with the player.

Lock the cursor at game start and toggle between locked and unlocked with escape or left mouse click, enabling hidden cursor during play and visible when needed.

Create a first-person camera by making the main camera a child of the player, aligning rotation, and centering it in the capsule. Prepare for shooting mechanics in the next section.

Set up shooting by adding a rifle, creating a fire point, and wiring a player shooting script to instantiate bullets (prefabs) on left click.

Attach a bullets script to the player bullet prefab, rotate the fire position 180 degrees, launch by setting rigidbody velocity forward, and destroy after two seconds using the awake function.

Set a shooting cooldown by introducing a time between shots and a can shoot flag, using a coroutine to enforce delays between each fire.

Create and animate enemies in a Unity C# project by importing a monster, applying textures, and setting up an animator with idle and run states and range-based transitions.

Implement a dragon enemy controller that detects the player within a defined range using distance calculations and a boolean animator parameter to toggle running and idle animations.

Implement enemy chase by computing the player's position, normalizing direction, and moving toward the player with a look at rotation, while keeping the enemy on the ground.

Add attacking animation and mechanics to the enemy in unity by using an attack trigger, defining attack and detecting ranges, and transitions from run to attack and idle.

Detect enemy hits by an attack point using Physics overlap sphere, radius, and player layer, visualize with gizmos, and log when the player is damaged.

Build an enemy health system in Unity with public health variables, a take damage function, and destroy on zero health, while bullets call damage via the enemy controller instance.

Add a death animation to the enemy by selecting a die clip, triggering dead when health <= zero from any state, and destroying the dragon after two seconds.

Fix a bug by stopping a dead enemy from chasing the player: disable its collider and enemy controller script after the dead animation in the take damage function.

Learn to set up a player health system in Unity, initialize max health, apply damage on trigger collisions, and deactivate the player when health reaches zero.

build a health bar in Unity using a border image and a fill slider inside a canvas anchored to the top-left, with full hd resolution and scale with screen size.

Connect the health bar UI to the health system in Unity by linking the slider's max value and value to the current health, using public setMaxHealth and setHealth methods.

Implement enemy damage by accessing the player health script from the enemy controller, invoking damage, and attaching the attack point to the monster's right hand to test health decrease.

Implement a red damage screen by fading a full-screen UI image on damage, using a UI controller to smoothly fade alpha back to zero for damage feedback in Unity.

Learn to add multiple weapons, such as rifle and pistol, using prefabs, proper positioning, and a C# script to switch weapons with the mouse scroll wheel, activating and deactivating guns.

Learn to implement a simple ammo system in Unity for a 3D fps: set max ammo, track remaining ammo, decrement on each shot, and prevent shooting at zero.

Add ammo to the game by picking up an ammo box: create a trigger collider, implement an AddAmmo(amount) method, and destroy the box after the player collects it.

Add a bottom-left ammo text to the Unity canvas and update it in real time from the UI controller and shooting script to show remaining ammo.

Replace bullets with actual bullet prefabs by unpacking, adjusting orientation, adding a convex mesh collider and rigidbody, disabling gravity, and updating the player shooting script.

Attach a muzzle flash prefab at the fire point, adjust its position and rotation, and activate it with a simple shooting script using a particle system for rifle and pistol.

Enable smarter enemy movement in Unity by baking the scene with the navigation system and using a NavMeshAgent to have enemies chase the player while avoiding obstacles.

Fix bullet behavior by destroying bullets on any collision; disable the nav mesh agent when the enemy dies to stop it; reduce time between shots to 0.15 seconds.

Design the game environment in Unity by using assets from the Asset Store, unpacking and arranging prefab components, and organizing walls, doors, and ground layers into a cohesive modular dungeon.

Import assets from the Unity Asset Store, create prefabs, assemble level one with a player, enemy, camera, and health bar, and bake navigation.

Learn to configure skyboxes in Unity by swapping default skies with stylized or space skybox materials from the asset store, and refine lighting using directional, point, and spotlight controls.

Learn to apply textures and materials in Unity by creating new materials, assigning albedo textures, and adjusting tiling to customize ground and wall appearances.

Create a new main menu scene, add a text title and three buttons (start, quit, credits), and customize fonts, colors, and layout for a functional Unity 3D FPS game.

Create menu buttons in Unity by wiring on click events to start, quit, and credits, using scene names and scene manager to load level one and credits.

Create a Unity credits scene with a black background, scrolling white text, and a bottom-to-top animation, then use a C# coroutine to load the main menu after playback.

Add a pause menu singleton and guard inputs with is paused. Wrap movement and shooting in the paused check to disable actions.

Create a Unity audio manager to control sound effects, including ammo pickups, enemy attacks, enemy dead, jumping, and shooting, using a centralized play-sfx function across player and enemies.

Set up background music with an audio manager and organize sounds using a Unity audio mixer. Group sound effects and music, route outputs, and trigger SFX by index.