Learn UNITY with Real Code Examples

Updated Nov 24, 2025

Introduction & Fundamentals Setup & Configuration Architecture & Deep Internals Performance & Security Development Workflow Learning & Career Growth Business & Strategy Examples

Practical Examples

2D platformer game

3D endless runner

AR Foundation mobile AR app

VR training simulation

Multiplayer shooter prototype

Troubleshooting

Check console for C# errors

Verify object references in Inspector

Fix physics not working (colliders/rigidbody)

Optimize high draw calls

Resolve package manager dependency issues

Testing Guide

Use Play Mode for quick tests

Profiler for performance debugging

Unity Test Framework

Device Simulator for mobile

Build to real hardware for final testing

Deployment Options

Android & iOS

Windows/macOS/Linux

WebGL

Consoles (PS, Xbox, Switch)

Quest/VR and AR devices

Tools Ecosystem

Unity Editor & Hub

VFX Graph & Shader Graph

Animation & Timeline

ProBuilder and Terrain Tools

Unity Asset Store

Integrations

Firebase

PlayFab

Unity Gaming Services

ARCore & ARKit

Steam, PlayStation, Xbox SDKs

Productivity Tips

Use prefabs for reuse

Use packages instead of custom code

Keep scripts modular

Use Editor tools & extensions

Use shortcuts and automation

Challenges

Create 2D platformer levels

Build a 3D character controller

Create AR Foundation project

Implement object pooling

Build and publish a mobile game