Infinite Mac which you will find at this URL is a web port of Basilik II which allows you to have an old 68K Mac as well as its share of retro applications and games directly in your browser.
You will be able to experience the interface of Mac OS 8.1 as your parent boomers have experienced it, explore the control panels and utilities of the time, but also games like Civilization, Indiana Jones and the Last Crusade, Prince of Persia, Sim City or even old code editors, an old version of Word dated 1992, and so on.
There is really something to have fun, explore, tweak without taking the lead. It’s even possible to send files to it using a simple drag and drop to open them in this antiquity, except I couldn’t. You may be more successful than me.
In any case, it’s a beautiful project that deserves a little look.