Selecting the best game engine depends on various factors, including your project's requirements, your team's expertise, and the platform you're targeting. Here are some of the most popular and powerful game engines available, each with its unique strengths:

1. Unreal Engine

Strengths:

• High-Fidelity Graphics: Known for its stunning graphics and visual capabilities, Unreal Engine is often used in AAA games and high-quality productions.
• Blueprints Visual Scripting: Allows for rapid development and prototyping without needing to write code.
• C++ Source Code: Access to the complete C++ source code offers flexibility and deep customization.
• Cross-Platform Support: Supports a wide range of platforms including PC, consoles, mobile devices, and VR/AR.
• Strong Community and Marketplace: Extensive community support and a marketplace with assets and plugins.

Popular Games: Fortnite, Gears of War series, Final Fantasy VII Remake.

2. Unity

Strengths:

• Versatility: Suitable for both 2D and 3D games, making it a popular choice for indie developers and larger studios.
• C# Scripting: Uses C# for scripting, which is relatively easy to learn and widely used.
• Asset Store: Extensive asset store with ready-to-use assets, tools, and plugins.
• Cross-Platform Support: Supports over 25 platforms, including mobile, desktop, consoles, and AR/VR.
• Strong Community: Large and active community with many tutorials, forums, and third-party resources.

Popular Games: Hollow Knight, Monument Valley, Cuphead.

3. Godot

Strengths:

• Open Source: Completely free and open-source, with a permissive MIT license.
• Lightweight and Efficient: Small download size and efficient performance.
• GDScript: Uses a Python-like scripting language that's easy to learn. -Node-Based Architecture: Offers a flexible and intuitive scene system.
• Cross-Platform Support: Can export to multiple platforms including Windows, macOS, Linux, Android, iOS, and HTML5. Popular Games: Kingdoms of the Dump, Deponia.

4. CryEngine

Strengths:

• High-Quality Graphics: Renowned for its advanced rendering capabilities and realistic graphics.
• Sandbox Editor: Powerful level editor with a real-time preview.
• Visual Scripting: Flowgraph for visual scripting.
• C++ and Lua Scripting: Provides both C++ and Lua for scripting.
• Cross-Platform Support: Supports PC, consoles, and VR platforms.

Popular Games: Crysis series, Hunt: Showdown, The Climb.

5. RPG Maker

Strengths:

• User-Friendly: Designed specifically for creating 2D RPGs with minimal programming knowledge.
• Event System: Powerful event system to handle game logic and interactions.
• Built-In Assets: Comes with a library of assets and tools for creating characters, maps, and scenarios.
• Customization: Scripting support via Ruby or JavaScript (depending on the version) for custom features.
• Community Support: Active community with lots of tutorials, resources, and plugins.

Popular Games: To the Moon, OneShot, LISA: The Painful.

6. GameMaker Studio

Strengths:

• 2D Game Development: Optimized for 2D game development with a robust set of tools.
• GML Scripting: Uses GameMaker Language (GML), which is easy to learn and use.
• Drag-and-Drop: Allows developers to create games without writing code, using a drag-and-drop interface.
• Cross-Platform Support: Can export to multiple platforms including desktop, mobile, web, and consoles.
• Community and Resources: Strong community support with plenty of tutorials and resources available.

Popular Games: Undertale, Hyper Light Drifter, Hotline Miami.

Conclusion

Choosing the best game engine depends on your specific needs, such as the type of game you are creating, your team's expertise, and the platforms you are targeting. For high-fidelity 3D games, Unreal Engine and CryEngine are excellent choices. For versatile 2D and 3D development, Unity and Godot offer great flexibility. For 2D RPGs, RPG Maker provides a user-friendly environment. Lastly, GameMaker Studio is a solid option for 2D game development with an easy-to-use interface.