What programming languages ​​are used to write games for Android: complete guide 2026

Development of mobile games for Android is one of the most dynamic areas of IT, where the choice of programming language directly affects productivity, development speed and even monetization of the project. It’s easy for beginners to get lost among dozens of technologies: from classic Java to niche Lua in game engines. And experienced developers often argue whether it is worth switching from C++ to Kotlin or using C# s Unity for cross-platform projects.

In this article we will look into 7 main languages to create Android games, their strengths and weaknesses, and we will also give recommendations for choice depending on the type of game (2D, 3D, casual, AAA). We will pay special attention two critical factors: compatibility with Google Play and optimization for weak devices, which are often ignored by beginning studios. You will also find a comparative table of languages ​​by key parameters and answers to frequently asked questions about monetization and porting of games.

1. Java: a classic with pitfalls

Java —the official development language for Android, and it is on it that most games in Google Playare written. Its main advantage is native support all platform APIs, from graphics (OpenGL ES) to working with sensors. However, Java has serious disadvantages for game developers:

• ⚠️ Low performance in comparison with C++ - critical for 3D games with complex physics.
• 📦 Garbage Collector (GC) can cause lags in games with high frame rate.
• 🛠️ Requires manual code optimization for weak devices (for example, Budgetsmartphones on Mediatek Helio).

Despite the disadvantages, Java remains relevant for:

• 🎮 2D games (for example, puzzles or arcades on LibGDX).
• 💰 Projects with AdMob —native integration of advertising is easier than in Unity.
• 📱 Games for Android Gowhere compatibility with older OS versions is critical.

⚠️ Attention: Since 2023 Google Play requires that new applications supported Android 12 (API 31) and higher. This means that the code on Java must use modern libraries (for example, AndroidX instead of the outdated one Support Library).

2. Kotlin: a modern alternative to Java

Kotlin is the preferred language for Android development since 2019 (official recommendation Google). It is compatible with Java, but offers a more concise syntax and built-in tools to combat NullPointerException - the main headache of game development. on Java.

Advantages Kotlin for games:

• ⚡ In short, the code 30–40% compared to Java (less boilerplate).
• 🔄 Full interchangeability s Java —you can gradually migrate.
• 🎯 Kotlin Coroutines make it easier to work with asynchronous tasks (for example, loading levels).

However, there are nuances:

• 🐢 Compilation longerthan Java (critical for large projects).
• 📚 Fewer ready-made tutorials on game development on Kotlinthan on C# or Java.

When to choose Kotlin? Ideal for:

• 📱 Hybrid projects (game + social functions, for example, as in Clash Royale).
• 🔧 Games with server part on Ktor (Kotlin framework for the backend).

3. C#: the king of cross-platform (Unity)

C# — the main one. language for Unity, the most popular game engine for mobile games (made on it Among Us, Pokémon GO, Genshin Impact). Its key advantage is cross-platform: one code base for Android, iOS and even consoles.

Advantages C# in game development:

• 🎮 Rich ecosystem (Asset Store, ready-made solutions for physics, AI, multiplayer).
• 📈 High performance thanks to IL2CPP (compilation into native code).
• 👥 Huge community - easy to find answers on Stack Overflow or curators for beginners.

Cons:

• 💸 Unity license has become paid for projects with income >$200K (since 2023).
• 📦 Large APK size (even an empty project weighs ~20 MB).
• 🔧 Limitations of native functions (for example, working with ARCore requires plugins).

⚠️ Attention: In 2026 Unity changed the policy pricing. Now payment depends not only on income, but also on the number of installations. Before starting the project, check the current tariffs in Unity Dashboard - this may affect the choice of engine.

What games is C# suitable for?

• 🌍 3D games medium complexity (for example, platformers or shooters).
• 🤖 Games with AR/VR (integration with AR Foundation).
• 💰 Projects with in-app purchases (convenient integration Unity IAP).

4. C++: maximum performance

C++ —the choice of AAA studios and projects where it is critical performance (for example, PUBG Mobile, Call of Duty: MobileIt allows you to write code that runs almost at the hardware level). but requires deep knowledge and a lot of development time.

Advantages C++:

• ⚡ Minimum overhead —ideal for complex graphics and physics.
• 🎛️ Full control over memory and threads (no garbage collector).
• 🔄 Compatible with most engines (Unreal Engine, Cocos2d-x, Godot).

Disadvantages:

• 🧩 Complicated syntax -high learning curve.
• 🐛 Manual memory management fraught with leaks (critical for long gaming sessions).
• 📱 Difficulties with native Android APIs (need wrappers through JNI).

Who needs C++?

• 🏆 AAA projects with a budget >$500K.
• 🎯 Games with multiplayer for 100+ players (for example, MOBA).
• 📱 Optimization for weak devices (for example, for the markets of India or Brazil).

How is C++ better than Java for games?

C++ compiles to native code, while Java runs through a virtual machine (JVM), which adds latency. For example, in shooters the difference in FPS can reach 20–30% in favor of C++.

5. Lua: scripting for game engines is a lightweight scripting language that is often used in game engines (

Lua is a lightweight scripting language that is often used as built-in tool in engines (Love2D, Defold, Roblox Studio). Its main advantage is the simplicity and speed of prototyping.

Where it is used Lua?

• 🎨 2D games (for example, Angry Birds made on Lua + Corona SDK).
• 📖 Visual novels and quests (the engine Ren'Py supports Lua scripts).
• 🤖 Mods and scripts for existing games (for example, in Garry's Mod).

Limitations:

• 🚫 Not suitable for 3D —no native support for modern graphics.
• 📉 Low performance in comparison with C++ or C#.
• 🔧 Requires connections with other languages (for example, C++ for the game core).

Life hack: If you are a beginner, try Defold —a free engine from King (creators Candy Crush), where Lua is used for logic, and rendering is optimized for mobile devices.

6. GDScript and Godot: open source, royalty-free

GDScript - a specialized language for the engine Godotthat is gaining popularity as a free alternative Unity. Its syntax is similar to Python, which simplifies learning.

Advantages Godot + GDScript:

• 🆓 No royalties —even for projects with millions in revenue.
• 📦 Small APK size (an empty project weighs ~10 MB).
• 🔄 Support C# i C++ for critical sections of code.

Weaknesses:

• 📚 Fewer tutorialsthan for Unity.
• 🎨 Limited tools for 3D (no ready-made solution for photorealistic graphics).

What projects is it suitable for?

• 🎮 2D games (platformers, RPG, strategy).
• 📱 Projects for niche markets (for example, educational games).
• 💡 Experimental games with non-standard mechanics.

7. Other languages: Go, Rust, JavaScript

In addition to the main languages, for Android games they sometimes use:

Language	Engine/Framework	Pros	Cons
Go (Golang)	Ebiten, Pixel	⚡ Fast compilation, simple syntax	🎮 Limited capabilities for 3D
Rust	Bevy, ggez	🛡️ Memory safety, high performance	📚 Difficult for beginners
JavaScript	Phaser, Three.js + Capacitor	🌐 Cross-platform (web + mobile)	🐢 Low FPS on weak devices

These languages are suitable for experiments or specific tasks:

• 🔧 Go — for the server side of multiplayer games.
• 🛡️ Rust — for high-load simulations (for example, real-time strategy).
• 🌐 JavaScript — for porting web games to mobile games (via Cordova or Capacitor).

⚠️ Attention: Games on JavaScript (for example, via Phaser) are often blocked Google Play due to security policy. Before release, check the requirements for WebView applications in the documentation Google.

Comparative table of languages for Android games

Language	Performance	Difficulty	Suitable for	APK size
Java	Average	Average	2D, casual games	10–30 MB
Kotlin	Average	Low	Hybrid projects	10–25 MB
C# (Unity)	High	Low	3D, cross-platform	20–100+ MB
C++	Maximum	High	AAA, complex graphics	15–50 MB
Lua	Low	Low	2D, prototypes	5–15 MB

FAQ: Frequently asked questions about Android game development

🔹 Which language is the easiest for beginners?

For beginners, GDScript (Godot) or C# (Unity)is best. The first has a simple syntax, similar to Python, and the second offers a huge number of ready-made solutions and tutorials. If you want to develop exclusively for Android, start with Kotlin it's easier Java and officially supported Google.

🔹 Can Python be used for Android games?

Technically yes, but with caveats. Python does not compile into native code, so games on it (Pygame, Kivy) will slow down on most devices. For simple 2D games you can use Ren'Py (visual novels) or Pygame Subset for Android, but for 3D or complex physics Python it is not suitable. It is better to consider GDScript (similar to Python, but optimized for games).

🔹 Which engine is better for 3D games: Unity or Unreal Engine?

The choice depends on the budget and goals:

• Unity (C#) - easier for beginners, better for mobile games, but since 2023 it has introduced installation fees.
• Unreal Engine (C++/Blueprints) - better graphics, but more difficult to learn and requires powerful hardware for development. Suitable for projects with a budget >$100K.

For Android Unity often preferable due to the smaller APK size and better optimization for mobile processors.

🔹 Do you need to know Java/Kotlin to publish a game on Google Play?

No, it is required know Java or Kotlin only if you are developing native application without an engine. If you use Unity, Godot or Unreal Engine, then you can publish the game without knowing these languages. However, for integration native functions (for example, Google Play Billing or Firebase) you may need to write small modules on Java/Kotlin.

🔹 How to optimize the game on weak Android devices?

Here are the key steps:

1. Lower texture resolution (use .png instead of .jpg for transparency).
2. Limit number of polygons in 3D models (target value: <10K for mobile games).
3. Use object pooling instead of constant creation/destruction objects.
4. For Unity: enable IL2CPP and disable VSync.
5. Test on devices with 2 GB RAM (for example Redmi 9A or Samsung Galaxy A03).

For C++ or Java it is also recommended to use profiler (Android Profiler or RenderDoc) to find bottlenecks.

💡

For most indie developers, the optimal choice is C# with Unity (for 3D) or GDScript with Godot (for 2D). If the target audience is owners of weak smartphones, consider Kotlin + LibGDX for maximum optimization.