UNIGINE
UNIGINE is an enterprise-grade real-time 3D engine that offers photorealistic graphics, and supports large virtual worlds via C++ and C# APIs. The engine was designed with open-world capabilities, and features unique terrain technology, which allows for extreme detail of up to 1mm per pixel. It also supports runtime editing, collaborative editing, and runtime modification. It allows scenes as large as the solar system to be created. UNIGINE offers three SDK editions to meet different needs. The Sim SDK is designed for simulation and training, with planet-scale scenarios, immersive display setups, and advanced GIS and BIM data handling. The Engineering SDK can be embedded into enterprise applications, such as digital twins and BIM projects, and smart city applications, and features advanced GIS and BIM data handling.
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Cocos2d-x
Cocos2d x is a lightweight, cross-platform, open-source game engine that provides developers with stable, mature solutions. It has been available since 2011. The engine supports platforms like iOS, Android and Windows, macOS and HTML5 browsers such as Chrome, Safari and Internet Explorer. It also offers interfaces written in C++, Lua and JavaScript. Cocos2d x is built on OpenGL ES 2.0 for graphics rendering and Metal for mobile devices, while maintaining compatibility. Developers can use Lua or JavaScript to perform instant updates to games. This eliminates the need to send packages and wait for review. The engine's open source capabilities allow for extensive customization. This allows game companies to create their own game types and extension, including combining 3D engines to solve interface and UI issues in 2D. Cocos2d version 3.x, according to test data is compatible with 99.7% Android devices in China.
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Unity
A powerful platform for building interactive, real-time experiences across 2D, 3D, and VR. Develop games and applications quickly with a full suite of tools, from artist workflows to live operations. Whether you're refining visuals or optimizing performance, you have everything needed to bring your creative vision to life. Gain real-time insights into crashes, exceptions, and user feedback to improve game stability, while expert technical support ensures minimal downtime. Unity Gaming Services provides robust backend and LiveOps solutions, trusted by top studios to power multiplayer and live games at any scale, seamlessly integrating with any engine or tech stack.
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O3DE
Open 3D Engine (O3DE), a modular, open-source, cross-platform 3D engine, is designed to power everything from AAA games to high-fidelity simulations to cinema-quality 3D worlds. There are no commercial obligations or fees. Apache 2.0-licensed. The Linux Foundation manages this site. O3DE's modular architecture allows for customization right from the beginning. Each component, known as a Gem, can be adopted individually to give you access the functionality that you need for your application. You can add new editing tools, features, or development workflows to your projects. You can choose from a range of community-maintained Gems that will enhance and extend the engine's capabilities in everything from AI and robotics to push notification and VR. You can use O3DE's SDK capabilities to build any type of 3D project that you can think of.
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