imeight
The imaginary eight-bit machine
Try-it page: https://imeight.sourceforge.io/ (development environment, which is not mobile friendly)
An HTML5 emulator of a machine that never existed. The emulator brings back memories from the 1980s, offers graphical features like sprites, character generator, 16-color palette.
One goal is to create a framework for making games with 8-bit look and feel, including the process of programming.
The programming tutorial helps beginners enter the world of programming in a gamified way.