Fatih Çil

Self-Taught Developer

Software Engineer


Game Developer

Fatih Çil

Self-Taught Developer

Software Engineer


Game Developer

Blog Post

Creating a 2D Strategy Game with Unity: A Journey into CountryBall World

September 25, 2023 Game Development

In the realm of game development, the creation of a strategy game can be a daunting yet incredibly rewarding endeavor. It involves a careful blend of design concepts, coding techniques, and creative assets to bring a world to life. In this blog post, we’ll delve into the making of a 2D strategy game using Unity 2021 LTS, featuring a playful CountryBall theme.

The Concept

Our game draws inspiration from classic strategy games like Age of Empires. The goal is to create a seamless gaming experience with the following core features:

Building Production: Players can construct various types of buildings, each with its own unique purpose and appearance.

Unit Production: Barracks can produce different types of soldier units, each with varying health and attack attributes.

Unit Movement: Players can command their units to move to designated areas on the map using the shortest path.

Information Screen: Selecting a building displays its image and available unit production options.

Health Points: Buildings and units have health points (HP), and they get destroyed when their HP reaches zero.

Optimization: Utilize batching and instancing to minimize draw calls and improve performance.

Design Principles

To create a maintainable and extensible game, we’ve embraced key design principles:

Object-Oriented Programming (OOP): We’ve structured our code using OOP concepts, implementing inheritance and polymorphism where needed.

SOLID Principles: Our code adheres to SOLID principles for better modularity and ease of maintenance.

Design Patterns: We’ve applied the Factory and Singleton design patterns where appropriate to streamline object creation and manage global game state.

UI-Logic Separation: We’ve separated the user interface (UI) and game logic using the Model-View-Controller (MVC) architecture for clarity and maintainability.

Coding Techniques

Our game incorporates various coding techniques and Unity features:

Object Pooling: To efficiently manage the instantiation and recycling of game objects.

Coroutines: Used for tasks like unit movement and timed events.

Events: To handle interactions and trigger actions in response to player input.

Algorithm: Pathfinding with A*

To achieve smooth unit movement, we’ve implemented the A* pathfinding algorithm. This algorithm calculates the shortest path from the starting point to the destination, ensuring that units navigate around obstacles and reach their target efficiently.


Creating a 2D strategy game in Unity is a challenging but rewarding endeavor. By combining design principles, coding techniques, and creative assets, we’ve embarked on a journey into the CountryBall world. Our game features building construction, unit production, unit movement, and responsive design, all while adhering to best practices in game development. With a dash of strategy and a pinch of creativity, we’ve brought this vibrant world to life for players to enjoy. You can access to codes from this link.
Thanks for reading my post 🙂 Bye!

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