Both Unity and Unreal Engine are powerful tools, but the better choice depends heavily on your project’s needs, your team's experience, and your target audience. Here's a breakdown to help you decide:

✅ Unity – Best for Most Mobile Games

Pros:

Lightweight builds: Unity is more optimized for mobile. You’ll generally get smaller APK/IPA sizes and better performance on low to mid-end devices.

2D & Casual Game Support: Unity has strong native support for 2D, which is ideal for platformers, puzzle games, and hyper-casual titles.

Large Asset Store: Tons of ready-made assets, plugins, and tools tailored for mobile development.

Massive Community: Easier to find tutorials, troubleshooting tips, and developers familiar with mobile workflows.

Cross-platform tools: One-click export to Android, iOS, and even WebGL or consoles.

Cons:

Visual quality can lag behind Unreal for high-end 3D visuals unless you're deeply optimizing.

Built-in systems (like UI or animation) can sometimes feel clunky at scale.

✅ Unreal Engine – Best for High-End 3D Mobile Games

Pros:

Superior Graphics: If you’re making a mobile game that pushes visual fidelity (think AAA-quality racing or shooter games), Unreal's rendering pipeline shines.

Blueprint Visual Scripting: Makes prototyping easier for non-programmers.

Out-of-the-box systems: Unreal comes with more built-in advanced systems like AI behavior trees, multiplayer frameworks, and cinematic tools.

Niagara VFX & Control Rig: If your game requires advanced animations or effects, Unreal delivers more power natively.

Cons:

Heavier engine: Mobile builds tend to be larger, which can be a problem for low-end devices or certain app store limits.

Steeper learning curve: Unreal is more complex, especially if you're coming from a non-C++ background.

Battery & Performance: Unreal’s high-end features can drain mobile batteries faster and require more aggressive optimization.

🧠 Final Thoughts

If you’re aiming for fast iteration, broader device support, and smaller file sizes, Unity is usually the safer bet for mobile. If you want to push the limits of mobile graphics and are prepared for the extra complexity, Unreal can deliver stunning results.

Both engines are capable — the best one is the one that aligns with your project's needs and your team’s strengths.

Know more: https://www.gameignis.com/services/mobile-game-development