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Unity C# Scripting Foundations: MonoBehaviours, Coroutines and Input

Learn the C# that Unity actually runs, from the lifecycle to the new Input System.

Rated 4.0 out of 5 from 2 reviews 21 students

YT Created by Yuki Tanaka

  • Last updated August 2026
  • English
  • 5h 52m of material
  • 44 lessons

What you will learn

8 concrete outcomes

Every bullet below is something you will have built, shipped or be able to explain by the time you finish the last lesson.

  • Explain the MonoBehaviour lifecycle and choose Update, FixedUpdate or LateUpdate correctly
  • Control what Unity serialises with SerializeField, attributes and custom inspectors
  • Write coroutines that behave predictably, including cancellation and custom yields
  • Set up the new Input System with action maps, bindings and runtime rebinding
  • Use ScriptableObjects for configuration and decoupled event channels
  • Move and collide objects with Rigidbody physics instead of fighting the engine
  • Pool objects and avoid the allocation patterns that cause garbage collection stutter
  • Structure scripts so scenes stay maintainable as the project grows

Course curriculum

6 modules · 44 lessons · 5h 52m of material

8 lessons running 1h 04m in total. Each lesson ships with the finished source files and a short written recap, so you can follow along in your own editor and skim the module again later.

Lesson-by-lesson titles, code downloads and exercises live inside the course library you get access to straight after checkout.

8 lessons running 1h 02m in total. Each lesson ships with the finished source files and a short written recap, so you can follow along in your own editor and skim the module again later.

Lesson-by-lesson titles, code downloads and exercises live inside the course library you get access to straight after checkout.

7 lessons running 56m in total. Each lesson ships with the finished source files and a short written recap, so you can follow along in your own editor and skim the module again later.

Lesson-by-lesson titles, code downloads and exercises live inside the course library you get access to straight after checkout.

8 lessons running 1h 06m in total. Each lesson ships with the finished source files and a short written recap, so you can follow along in your own editor and skim the module again later.

Lesson-by-lesson titles, code downloads and exercises live inside the course library you get access to straight after checkout.

7 lessons running 54m in total. Each lesson ships with the finished source files and a short written recap, so you can follow along in your own editor and skim the module again later.

Lesson-by-lesson titles, code downloads and exercises live inside the course library you get access to straight after checkout.

6 lessons running 50m in total. Each lesson ships with the finished source files and a short written recap, so you can follow along in your own editor and skim the module again later.

Lesson-by-lesson titles, code downloads and exercises live inside the course library you get access to straight after checkout.

6 modules · 44 lessons

5h 52m total length

Requirements

Short list, and deliberately so. If you meet these you can start today.

  • Basic C# syntax: variables, methods and classes
  • Unity 6 or Unity 2022 LTS installed with a scratch project
  • No game development experience needed; the engine basics are covered as you go

About this course

Unity tutorials usually teach you to copy a script and move on, which works until something behaves strangely and you have no model of why. This course teaches the C# side of Unity properly: what the engine calls, in what order, and what your code is allowed to assume at each point.

You start with the MonoBehaviour lifecycle, Awake through OnDestroy, and the difference between Update, FixedUpdate and LateUpdate measured against real frame timing. Serialisation follows, because half of Unity confusion comes from not knowing which fields the inspector persists and when. Then coroutines: what yield return really does, custom yield instructions, and why a coroutine on a disabled object stops.

The second half is applied. You wire the new Input System with action maps and rebinding, use ScriptableObjects for configuration and events, move objects with the physics system rather than against it, pool objects to avoid garbage collection spikes, and organise scripts so a scene does not become a web of direct references. The result is a small playable prototype and a set of habits that scale past it.

Topics covered

Frequently asked questions

Still unsure about something? Write to misteryjj100@gmail.com and a human answers, usually the same working day.

Unity 6, with notes wherever 2022 LTS differs. The Input System package version and the exact project settings used are listed in the resources.

Basic syntax helps, but the course explains every C# feature it uses. If you are completely new to the language, the C# beginner path pairs well with this one.

Very little. The prototype uses primitive shapes on purpose so that every minute goes to scripting rather than asset creation.

Yes, and the final module covers it. Edit Mode tests cover pure logic you have kept out of MonoBehaviours, and Play Mode tests exercise the lifecycle itself with the Unity Test Framework.

Checkout is handled on our provider's secure payment page. The moment your payment clears we email your personal access link and access code to the address you used at checkout, and the same link appears in your account library. There is nothing to install and nothing to wait for.

Email misteryjj100@gmail.com within 14 days of your purchase, quote your order number, and we refund the full amount to your original payment method. No form to fill in and no questions about how much of the course you watched.

What students say

Reviews are written by people who bought this course. We publish the critical ones too.

4.0

Rated 4.0 out of 5

Course rating · 2 reviews

Rating distribution

  • 5 stars 50%
  • 4 stars 0%
  • 3 stars 50%
  • 2 stars 0%
  • 1 star 0%
  • DO

    Daniel Okoye

    Indie game developer

    Feb 2026
    Rated 5.0 out of 5

    The lifecycle timeline is worth the money

    Awake against OnEnable against Start, and where FixedUpdate sits relative to all three, laid out on one timeline. I had been guessing for two years and carrying bugs I could not explain. Not any more.
  • SL

    Sara Lindberg

    Junior developer

    Aug 2025
    Rated 3.0 out of 5

    The Input System part has aged

    Lifecycle, coroutines and object pooling are all taught well and the prototype at the end is a sensible size for a beginner. The Input System chapter was recorded against an older package: several menus have moved and enough of the rebinding API has changed that I ended up working from the documentation instead. Manageable if you are comfortable translating, quite demoralising if you are not.

Your instructor

YT

Yuki Tanaka

Game developer and C# instructor

  • 120 students taught
  • 5 courses published
  • 4.3 instructor rating
  • C#
  • .NET
  • Unity
  • Gameplay programming

Yuki has shipped six commercial titles, four of them solo, across PC and mobile. She teaches C# and .NET the way small studios actually use them — inside Unity, under a deadline — so the language lessons and the engine lessons arrive together. Students finish a playable game in every course, complete with menus, save files and a distributable build. She mentors at game jams most weekends and has judged three of them.

See every course by Yuki Tanaka
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