If you were thinking about old-school games, so was Google, apparently. It would be fun to pull out some of the old books full of Basic games and get Star Trek, Wumpus, and all the other games of that era in the browser. However, it looks as though some things that would be difficult are yet to be implemented (for example, the INPUT statement). We suppose you could write your own quasi-input function using INKEY but that would be painful.
Is it practical? Probably not, but we enjoyed seeing our old friend Basic show up in the browser again. The fact that unlike VBScript it is sort of retro just made it that much more fun.
If you want a more traditional Basic experience, Quickbasic is still around. Or, if you want to stay in the browser, you can do that, too. Incidentally, no actual donkeys were harmed during the production of this post.