When comparing Impact vs Goo Create, the Slant community recommends Impact for most people. In the question“What are the best 3D game engines?” Impact is ranked 42nd while Goo Create is ranked 50th. The most important reason people chose Impact is:
Impact provides 2 types of [collision detection](http://impactjs.com/documentation/collision); static and dynamic collisions. Both of which are easily integrated into game development.
Ranked in these QuestionsQuestion Ranking
Pro Excellent collision detection system
Impact provides 2 types of collision detection; static and dynamic collisions. Both of which are easily integrated into game development.
Many plugins are available, including one called Impact++ which adds features like pathfinding and dynamic lighting.
Pro Level editor
Built-in map editor with support for tiling, collision layers, and actors.
Pro Extensive documentation available to support development
ImpactJS has an active user community that busily produces tremendous resources including videos, books, tutorials, walkthroughs and more. There are also comprehensive class documentation available.
Pro Truly cross-platform allowing developers to build for anything
Extending the reach of a game developed with ImpactJS is easy due to the cross-platform nature the framework. There are Considerations around performance, resolution and audio, however all can be appropriately addressed when in development. Works in the browser via Canvas, even on mobile. Easily translatable into a packaged app.
Pro Really small project/game download sizes
Since GooCreate is native to the Web and uses WebGL directly, finished projects usually have a much smaller (sometimes orders of magnitude) download sizes compared to tools like Unity.
Pro Visual State Machine Editor
Pro Integrated physics engine (Cannon.js)
GooCreate is tightly integrated with the Cannon.js physics engine making it super simple to add advanced physics simulations to any project. Cannon.js is available at http://www.cannonjs.org/.
Pro Web based scene editor, no installation or plugin needed
Pro Particle systems
Pro Open game engine and physics engine
The Goo.js engine is fully open source and available at https://github.com/GooTechnologies/goojs
Pro FBX model importer supporting embedded textures and skin based animation
Pro Real-time WYSIWYG Hierarchical scene graph editor
Pro Advanced Code/Text Editor with auto completion for Engine APIs
Pro Good material editor
Material editor supports diffuse color, normal maps, specularity, emissiveness, opacity, reflectivity and refractivity.
Pro Timeline editor to animate entities
Pro Projects can be distributed via a web link or packaged for Android and iOS
Pro Good variety of post effects
Post effects including bloom, motion blur, anti aliasing, levels, contrast, vignette and edge detection.
Con Cost of $99
While most HTML5 frameworks are offered as free open source projects, ImpactJS has a one time cost and no free option.
Con Going out of business
Goo create is facing bankruptcy.