If you are playing it in your browser then it is being distributed, unless you have some sort of stadia, play via video type service, then, to get all sorts of

If you are playing it in your browser then it is being distributed, unless you have some sort of stadia, play via video type service, then, to get all sorts of pedantic "this is technically legal" the owner would have to have to make sure no more than then the number of legal copies of the game were played at once. Personally I don't worry too much about a bit of copyright infringement, especially in cases like this where there are no plans to ever publish the title again.