JavaScript can be a surprisingly good programming language to use for creating 2D games. Especially games you want to be playable on almost any device.  We just published a course on the freeCodeCamp.org YouTube channel that will teach you how to code a 2D game using JavaScript, HTML, CSS,

freeCodeCamp is a nonprofit organization offering free online coding courses and programming tutorials, covering topics such as web development, data science, and machine learning. Learners can gain practical coding skills, build real-world projects, and earn certifications to advance their careers in tech.

freeCodeCamp

The game uses just HTML, CSS and plain JavaScript without frameworks or libraries. You will build a game completely from scratch featuring everything from sprite animation to parallax backgrounds.

How to Code a 2D Game Using JavaScript, HTML, and CSS