For collisions I can say p5.play has been an excellent plugin for p5 to handle inertial physics and collisions. I would suggest that the novice game developer might enjoy rolling their own basic collision detection ( object overlay, mouse-over, inertia-ignoring collision resolution, etc), but…

I think p5.js [1] is difficult to beat when it comes to in-browser creative coding, games included. Daniel Shiffman has a YouTube playlist of various videos about making games with p5.js [2]. There is also p5play [3], which was made specifically for educational game development. [1]…