When comparing Crafty.js vs Superpowers, the Slant community recommends Crafty.js for most people. In the question“What are the best 2D game engines?” Crafty.js is ranked 37th while Superpowers is ranked 71st.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Javascript
Pro Eventbinding
Easy to learn, based on Entities and Components, the later being class-like objects that entities inherit.
Pro Modular
Has open function binding systems, allowing easy creation of custom components.
Pro Collaborative
You can spin up a server and work with other people at the same time.
Pro Supports both 2D and 3D
This isn't a 3D with 2D on the side type of engine. The scene-editor supports both 3D and 2D views, allowing ease of use no matter what type of game your making.
Pro Plugin based
The community can develop and release their own plugins to add additional features making game development easier. All of these plugins can be easily downloaded in the app.
Pro Lots of handy built-in editors
It's got a scene-editor, cubic-model creator, text-editor, 2D image / animation importer, and a very useful tile-map editor.
Pro Easy to use programming language
Games can be published to the web with good performance, and the game-framework utilizes TypeScript to make programming games a little bit nicer.
Cons
Con No IDE
If you like having some huge GUI akin to Gamemaker, Unreal, Unity, etc, Crafty is not for you.
Con Not frequently updated
Although it's got very nice features as is, and the team does respond to issues at a pretty good rate, the engine itself takes a little while to get updates. It's a 3-4 person team, and they need to work jobs on the side in order to bring in income.
Even though the updates come out a little slower than other engines, the team is still very much committed to the project and still support it well.