Neocities.org

CinnaOS 2.0 is the latest and most advanced version of the browser-based operating system simulation. Designed with a retro aesthetic and enhanced functionality, it features a fully interactive desktop environment, draggable windows, built-in apps like Notepad, Clock, Calendar, Paint, and a command-driven Terminal and it can't run doom. New additions include a themed BIOS boot-up screen with setup navigation.

I actually like playing neocraft this is the best os