001 Game Creator is a graphically assisted scripting game engine for both beginners and advanced users, developed by SoftWeir from Canada. With its help, game developers can quickly prototype ideas, test complex systems, and build single-player or online/local multi-player (up to 4 players) and split-screen games for Windows, Steam, HTML5 web browsers, and Android/iOS, no coding required.

Unity makes it easy for developers to build games without getting bogged down in unimportant details. It handles a lot of the details for the user, allowing them to focus on gameplay, graphics, and user experience development. Its pre-built resources are of reliable quality, and they are a complete, huge ecosystem. In addition, Unity has an active and powerful development community where you can get a lot of help.

The Unity Asset Store is a growth-sustaining library of assets specially made for Unity game developers. Both Unity Technologies and community members create these assets and publish them to the store for free sharing or commercial selling. The asset types mainly cover textures, animations, models, entire Project examples, tutorials and Editor extensions.

Godot is a completely free, open-source, cross-platform, and lightweight 2D + 3D game engine. It started as a 2D game engine, but later expanded its capabilities for 3D game development. Compared with many other game engines, it is small in size, rich in features, simpler and easier to use, and more friendly to the novice game makers. The games made with Godot can be simultaneously released to Windows, Mac, Linux, Android, iOS, UWP, and HTML5 platforms.

Knald is the world's first high-quality 3D texturing software based on GPU algorithm. It can generate 3D texture maps from 2D images, including Normal, Derivative, Displacement/Height, Ambient Occlusion, Concavity and Convexity maps. It's easy to operate, real-time, and super-fast (almost no waiting) to generate textures.