Development of a 2D shoot 'em up video game in Unity

A course by Hernán Espinosa
Videogame developer. Tulsa, Chile.
Joined June 2019
, Videogame developer

Learn how to create a shooting video game using the leading platform

  • Spanish with subtitles in English
  • 93% positive reviews (83)
  • 1829 students

Learn how to create a shooting video game using the leading platform

Spanish with subtitles in English
  • 93% positive reviews (83)
  • 1829 students
  • 41 lessons (9h 40m)
  • 30 additional resources (1 files)
  • Online and at your own pace
  • Available on the app
  • Audio: Spanish
  • Spanish, English, Portuguese, German, French, Italian, Polish, Dutch
  • Level: Intermediate
  • Unlimited access forever

Over forty years have passed since Space Invaders invaded our lives with its revolutionary and addictive style of play, which gave way to the creation of a new game category: shoot 'em ups, known for having a protagonist who shoots at big hordes of enemies while seeking refuge.

Hernán Espinosa specializes in this type of game, and in this course, he will teach you how to create one using Unity, the most complete and flexible development platform in the market.

If you’ve never used Unity before, we recommend that before you take this course, you take a look at Introduction to Unity for 2D Video Games, in which you will learn how to use the software from scratch.

What will you learn in this online course?

Course table of contents

  • U1
    U1. Introduction
  • U2
    U2. Project Preparation
  • U3
    U3. Who controls the input, controls the world
  • U4
    U4. Enemies, how not to love them?
  • U5
    U5. Orchestrator's symphony
  • U6
    U6. The Boss!
  • U7
    U7. Metagame, UI and publication
  • FP
    FP Final project
View details

You'll start the course by getting to know Hernán, some of his works and, mainly, the work of artists who have inspired and influenced him, which have been key in his professional career as a videogame developer. He will also tell you what the project you'll be doing in this course will be about.

In the second unit, you'll learn to prepare the project with the essentials to start breathing life into the game. You'll define the initial architecture and customize the game, and you'll learn to use techniques to bring the stage to life and control the player’s movement.

You'll see the importance of the game input so that the player has the best possible experience. You'll have fun with the stage, and there will be destruction!

Then, you'll learn how to instantiate, or create, shooters. You'll understand the scripts that will give the initial bases to the input system. Hernán will teach you the importance of game physics, why use them, and how to take advantage of them. You'll see how to detect the collision between one object and another, which will give you the basis to work on the destruction within the game.

In the next unit, you'll learn to generate enemies dynamically within a level, configuring their difficulty and intelligence through scriptable objects. You'll realize how you can totally change the experience with just a few small changes in each definition of an enemy.

You'll learn to make one of the keys to the success of every video game, one of the elements that Hernán considers most important in a shoot 'em up: the final boss! In addition, he will teach you how to design and build a game orchestrator, which will allow you to keep track of everything that happens within your game.

Finally, you'll learn how to define a metagame, which supports the main gameplay by creating objectives for the player, to encourage him to play in the best possible way. You'll also know how to deploy your game on a platform, so that your friends, colleagues, grandparents, or anyone in the world can play it.

What is this course's project?

You'll develop a 2D shoot 'em up video game, like those from the old times, in which you'll give life to your ship, enemies, and bosses.

Who is this online course for?

Anyone with previous knowledge using development platforms who wants to start creating video games, but doesn’t know where to start. With this course you'll start shaping your ideas, dividing them into small components that will come to life and that, together, will achieve a synergy that has no limits other than those of your imagination.

Requirements and materials

You’ll need basic Unity skills, as well as basic programming knowledge.

You'll need to have a computer with macOS 10.12 or higher or with Windows 7 SP1 or higher.


1829 Students
83 Reviews
93% Positive ratings
  • More reviews

Hernán Espinosa

A course by Hernán Espinosa

Teacher Plus
Videogame developer

Hernán Espinosa has been dedicated to developing video games of different themes, types and sizes, from role plays to surgery simulators and even augmented reality games for almost a decade.

In the world of video games, Hernán found the meeting point of all his passions: cinema, illustration, animation and music. Its main focus is to design, develop, iterate and optimize software solutions that satisfy the user.


  • U1


    • Presentation
    • Influences
    • What will we do in this course
  • U2

    Project Preparation

    • Initial project considerations
    • Game Scene Architecture
    • Programming our first components
    • Bringing the stage to life
    • Game Scene Limits 1
    • Game scene boundaries 2
  • U3

    Who controls the input, controls the world

    • Creating the firing system
    • Destroy!
    • Physics2D is your friend
    • Bringing the input architecture to life 2
    • Bringing input architecture to life 1
  • U4

    Enemies, how not to love them?

    • Evolving the enemy generator 3
    • Evolving the enemy generator 2
    • Evolving the enemy generator 1
    • Configuring enemies 2
    • Configuring enemies 1
    • Generating enemies dynamically 1
    • Generating enemies dynamically 2
  • U5

    Orchestrator's symphony

    • Evolving the “game orchestrator” 2
    • Evolving the "game orchestrator" 1
    • Programming the "game orchestrator"
  • U6

    The Boss!

    • We create a Boss! 7
    • We create a Boss! 6
    • We create a Boss! 5
    • We create a Boss! 4
    • We create a Boss! 3
    • We create a Boss! 2
    • We create a Boss! 1
  • U7

    Metagame, UI and publication

    • Collectible objects such as power-ups 1
    • Collectible objects such as power-ups 2
    • Collectible items such as power-ups 3
    • Collectible items such as power-ups 4
    • Collectible items such as power-ups 5
    • Collectible items such as power-ups 6
    • Linking information to the user interface 1
    • Linking information to the user interface 2
    • Generate a "build"
    • Publishing the game
  • FP

    Final project

    • Development of video games shoot 'em up 2D with Unity

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Domestika's courses are online classes that provide you with the tools and skills you need to complete a specific project. Every step of the project combines video lessons with complementary instructional material, so you can learn by doing. Domestika's courses also allow you to share your own projects with the teacher and with other students, creating a dynamic course community.

All courses are 100% online, so once they're published, courses start and finish whenever you want. You set the pace of the class. You can go back to review what interests you most and skip what you already know, ask questions, answer questions, share your projects, and more.

The courses are divided into different units. Each one includes lessons, informational text, tasks, and practice exercises to help you carry out your project step by step, with additional complementary resources and downloads. You'll also have access to an exclusive forum where you can interact with the teacher and with other students, as well as share your work and your course project, creating a community around the course.

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Development of a 2D shoot 'em up video game in Unity. 3D, and Animation course by Hernán Espinosa

Development of a 2D shoot 'em up video game in Unity

A course by Hernán Espinosa
Videogame developer. Tulsa, Chile.
Joined June 2019
  • 93% positive reviews (83)
  • 1829 students