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Epic Games operates as an interactive entertainment company. It provides 3D engine technology, a digital ecosystem for developers and creators to build, distribute, and operate games and other content. It was formerly known as Epic MegaGames. It was founded in 1991 and is based in Cary, North Carolina.

Godot is a 2D and 3D, cross-platform, free and open-source game engine released under the MIT license. Developed by Juan Linietsky and Ariel Manzurfor and initialy released in Latin America prior to its public release.[ The Godot development environment runs on multiple operating systems including Linux, macOS, and Windows. Godot can create games targeting PC, mobile, and web platforms. Godot is a member of the Software Freedom Conservancy.

Cocos is a Chinese game engine service provider. Its main products include Cocos2d-x, an open-source game framework written in C++, Cocos Creator, a complete package of game development tools and workflow, and SDKBOX. The company was founded in 2010 and is based in Fujian, China.

Unity (NYSE: U) develops a 3D development platform, giving developers around the world the tools to create interactive 2D, 3D, VR, and AR experiences. It offers software solutions to create, run, and monetize 2D and 3D content for mobile phones, tablets, PCs, consoles, and augmented and virtual reality devices. The company was founded in 2004 and is based in San Francisco, California.

Yoyo Games created GameMaker. The GameMaker: Studio family of products caters to entry-level novices and seasoned game development professionals equally, allowing them to create casual and social games for, iOS, Android, desktop and the Web (HTML5). On January 20th, 2021, YoYo Games was acquired by Opera at a valuation of $10M.